Everything the adaptive question bank can teach and test in Spirituality, from foundations through advanced practice. Work through it in order, or start practicing and let the questions find your level.
In Pew Research Center's 2023 survey, 70% of US adults counted as spiritual, by calling themselves spiritual or by rating spirituality very important, and nearly half were both religious and spiritual. The tempting picture is a population split into churchgoers and seekers. The data show one large overlap and smaller groups at the edges. When you read a claim about "spiritual people," ask which group it means.
Pew's 2023 survey put the share at 22%. Of that group, 45% still claimed a religious affiliation, mostly Protestant or Catholic, and 54% were unaffiliated, so the label does not mean "no religion." It means the person gives spirituality a high rating and religion a low one in their own life. Treat the label as a self-description, and check what the person does before assuming what they believe.
Pew compared the two groups on belief in a soul, in something beyond the natural world, and in regular spiritual experience, and found large majorities in both. The groups differed on what the spiritual is: in the spiritual-but-not-religious group, 73% believed in a higher power other than the Bible's God; in the religious-and-spiritual group, 15% did. Difference in object, not in intensity.
Among spiritual adults in Pew's survey, 74% called connection with something bigger than themselves essential, 70% connection with God, and 64% connection with their true self. Smaller shares named inner peace, purpose or kindness. Dictionary definitions stress the non-material; ordinary usage stresses relationship. When a questionnaire asks about "connection," it is drawing on this common meaning.
When Pew asked people to say in their own words what spiritual means, 27% answered with organized religion's beliefs, such as God or Jesus, and 24% with connection. Pew's own reading was that the answers show the difficulty of separating the two words. A definition that forces the split is a research convenience, and any finding built on it should say which items drew the line.
Pew found 83% of US adults believe in a soul or spirit beyond the physical body and 81% believe something spiritual exists beyond the natural world. Those shares exceed any denomination's size, which is why spirituality measures that ask about a soul pick up most of the population. The numbers are a 2023 snapshot; the scale of agreement is the durable lesson.
In the 2023 survey, 57% believed animals can have spirits, 48% believed parts of the landscape such as mountains or rivers can, and 26% believed crystals or stones can hold spiritual energy. Among the spiritual-but-not-religious, belief in spirits in nature reached 71%. A belief that looks fringe from one pew is mainstream in another group; check the base before calling anything rare.
Pew reported that 57% believe the dead can reunite with loved ones, 46% that they can help, protect or guide the living, 42% that they can communicate with the living, and only 18% that they can harm the living. Belief in heaven (71%) ran ahead of belief in hell (61%). The asymmetry matters for anyone interpreting grief experiences: the expected contact is benign.
Pew found 45% had ever had such a feeling, 38% had felt a deceased person communicating with them, and 46% feel deep wonder about the universe at least monthly. Experiences this common cannot be a marker of pathology or of special gifts. A learner who hears "mystical experience" should expect something that millions report, and then ask what distinguishes the intense cases.
Pew measured 39% of US adults involved in a religious community and 14% in a spiritual community; 10% were in both and only 4% in a spiritual community alone. Among the spiritual-but-not-religious, only 5% rated a spiritual community extremely or very important. "Spiritual community" is mostly a subset of religious community, so claims about its effects rest on a small, mixed group.
B. Measuring and studying spirituality
Koenig's 2012 review defines religion by its organized, shared character: beliefs, practices and symbols designed to foster closeness to the transcendent and responsibility to others. The definition is about structure, not sincerity, so a solitary believer can still be religious in this sense if the beliefs and practices are a tradition's. Use it as a research term, not a judgment.
In Koenig's framing, spirituality is set apart from everything else by its relation to the sacred: the transcendent, the ultimate, the divine, however a person construes it. That makes it wider than religion and allows a non-theist to be spiritual. The cost is vagueness; a definition that admits nearly everyone measures very little. Good studies say which items carried the sacred.
Koenig warns that spirituality is often measured with mental-health items such as peace, purpose and hope. A scale built that way predicts well-being tautologically: the items overlap with the outcome. He therefore pools religion and spirituality as one research term. When a study reports that spirituality predicts peace, read the scale's items before believing the finding.
Koenig's review treats religion and spirituality together as R/S because most studies measure spirituality with religious items, such as attendance or prayer, or with well-being items. Pooling is honest about what was measured. The trap is reading an "R/S" result as a result about secular spirituality; most of the underlying samples were religiously active.
Religious involvement measures in Koenig's review include service attendance, private prayer and scripture reading, each a reportable behavior, alongside intrinsic religiosity and importance ratings. Attendance carries social contact and routine, which belief ratings do not, and attendance is the measure most often tied to physical outcomes. Always ask which kind of item produced a finding.
Koenig rated over 3,300 studies and reports proportions, such as 79% of well-being studies finding only positive associations. A proportion of studies says nothing about how large the effects were or how many were small, and a second rater agreed with his quality ratings only moderately. Treat such tallies as a map of the literature's direction, and look for a meta-analysis for size.
Koenig rated study quality on a 0 to 10 scale himself; a second rater's agreement was moderate, a correlation of 0.57. He also estimated that his search captured about 75% of the published work. A review is evidence about the literature filtered through its author. Read the methods for how many raters there were and how much they agreed before trusting a "most rigorous studies" subset.
Koenig's review discloses support from the John Templeton Foundation and he is a long-standing advocate of integrating spirituality into care. Disclosure does not falsify a finding, and his tallies include many null and negative results. It tells you where the interpretive weight may lean. Hold the same question for a skeptic's review: who paid, and what did the author already believe?
C. Prayer as practice
Van Cappellen and colleagues measured what people imagined praying about: praise, thanksgiving, intercession, and examining difficulties, among other contents. The types are not tradition-bound; Christian, Muslim and Hindu participants all used them. A sweeping claim that "prayer" does something should name the type, since asking for help and giving thanks are different acts with different likely effects.
The study grouped postures into upward and expansive, such as standing with hands raised, and downward and constrictive, such as kneeling with head bowed. In a US sample of 1,570, upward postures brought slightly more positive emotion and much more felt dominance; downward postures brought more humility and more examination of difficulties. The body position and the mental content moved together.
The authors report that all effects were small and that it is unclear whether real postures would move more. Participants imagined praying in a drawn posture rather than kneeling in a lab, which limits what the result can claim about embodied practice. A small, reliable effect is a finding about tendency, not a technique, and a reader should not expect kneeling to change a mood.
Christians in the study felt more positive emotion in upward postures, while Hindus showed the opposite pattern, and Muslims and Hindus felt closer to God in downward postures. In the Indian sample, many Hindus found the upward and expansive postures offensive, so that family could not be analyzed. Bodily form is read through a tradition's grammar; nothing about a posture is universal.
The study found that familiarity moderated the effect: less experience with the postures and lower religious practice went with larger differences between upward and downward prayer. One reading is that a novel posture is noticed, while a practiced one has become routine. This is why a technique can feel powerful to a beginner and inert to a lifelong practitioner.
In a 2015 survey of 1,700 UK Evangelical Christians analyzed by Dein and Brown, about 86% asked God to guide medical professionals and make treatments effective, about 83% prayed for comfort in suffering, and about 64% prayed for healing. Requests leaned toward outcomes the person saw as achievable. The popular image of prayer as a demand for miracles describes a minority of petitions.
About 49% of the surveyed Evangelicals described a case where prayed-for healing did not come. The reasons offered were God's sovereign and unknowable will, insufficient faith, a healing that took an unexpected form, and the view that miracles ended with the apostles. Each explanation keeps the relationship intact. The authors read this through cognitive dissonance theory rather than as evidence either way.
Dein and Brown contrast two views of divine sovereignty. In a blueprint model, an unanswered prayer was part of the plan; in a warfare model, it is a battle not yet won. The same bereavement is interpreted as acceptance in one and as a call to keep praying in the other. When you hear someone explain a loss, you are often hearing which model they hold.
Dein and Brown's review notes that studies of distant intercessory prayer for patients have produced negative or inconclusive results, which is why researchers turned to how people cope with unanswered prayer. The design problem is deep: the people prayed for are also prayed for by others, and no dose can be controlled. Think of intercessory prayer as a practice that carries meaning for the person praying, not as a therapy that has been tested.
The prayer survey's open-ended answers were thematically analyzed by a single coder, and the sample was UK Evangelicals only. The authors say both limits plainly. The categories are useful as a vocabulary for how people talk about unanswered prayer, and they cannot be generalized to other traditions or counted as prevalence estimates. Ask how many coders and what agreement before trusting a theme count.
D. Meditation and contemplation across traditions
Matko and Sedlmeier had 100 experienced meditators rate the similarity of 20 techniques drawn from 309 identified in the literature. Their conclusion is that there is no meditation as such, only groups of techniques that might exert diverse effects. A claim that "meditation does X" is therefore about one technique in one sample. Ask which technique before accepting the verb.
Multidimensional scaling of the meditators' ratings produced two axes. One runs from abstract practices, such as contemplating a spiritual question, to body-focused ones, such as a body scan. The other runs from still practices, such as sitting in silence, to movement practices. A lying body scan and a walking meditation are both body-focused but differ in activation; place a new technique on both axes before comparing it to another.
This cluster is the most body-oriented and the least active. The breath is observed rather than controlled, and attention moves through the body or rests at one point. Secular stress programs draw heavily on it, which is one reason "meditation" in Western surveys often means this cluster. A learner who has only done a body scan has met one of seven families.
The cluster differs from body-centered practice by taking mental events rather than bodily sensation as its object. The practitioner notices a thought arise and pass without engaging its content. The authors note that their clusters cut across the common split between focused attention and open monitoring; mindful observation is the open-monitoring end, but it sits beside body practice rather than opposite it.
This is the most active cluster. Walking meditation, breath control practices such as those in yoga, and choreographed sequences such as tai chi forms all belong here. The point is that stillness is not what defines meditation; attention is. A person who finds sitting intolerable has an entire family of practices that keep the body moving.
In the classification, contemplation is the most abstract cluster: concentrating on a paradox or contemplating a spiritual question. Christian contemplative reading, in which a short passage is read slowly and returned to, and philosophical self-inquiry both fit here. The object is conceptual, and the practice works by holding the question rather than solving it.
This cluster pairs gazing at a physical object with constructing an image in the mind. Tibetan visualization practices and the use of icons or mandalas as focal points belong here. The technique is concentrative, so a wandering mind is brought back to the image. It is often grouped with mantra practice in older taxonomies, but meditators rated it as its own family.
Here the object is an emotion to be generated rather than observed. Loving-kindness practice wishes well to oneself and to others in widening circles; "opening up to blessings" is a receptive form. These practices sit far from the body-scan end of the map. Claims about meditation and empathy usually come from this cluster, and should not be read onto breath practices.
The seventh cluster covers repeating syllables or phrases, singing mantras and meditation with sound. The rosary, the Jesus Prayer, Sufi dhikr, Hindu japa and Buddhist chant are all repetitive vocal or subvocal practices of this kind, whatever they mean within each tradition. The shared mechanism is rhythm and repetition; the meaning is tradition-specific and is not the same across them.
Because body orientation was the strongest dimension in the data, Matko and Sedlmeier describe their framework as embodied rather than cognitive. Even contemplation is done in a seated or walking body with a regulated breath. The consequence for a learner is practical: a technique's physical demands are part of the technique, which is why a practice that suits one body may not suit another.
The National Health Interview Survey put meditation at 7.5% of US adults in 2002 and 17.3% in 2022, ahead of yoga at 15.8%. In a 2012 survey, people who practiced said they did so for general wellness, relaxation and stress reduction, and better sleep. The numbers describe who practices and why; they say nothing about whether the practice delivered what was sought.
E. Disciplines of body, time and place
The National Center for Complementary and Integrative Health describes yoga as having begun as a spiritual practice that became popular as a route to physical and mental well-being. Classical yoga has further elements, including ethical disciplines, which most US classes leave out. When someone says "yoga is exercise" and another says "yoga is spiritual," both are describing a real part of a practice that has been split.
The federal fact sheet notes that yoga, tai chi and qigong are sometimes classed together as meditative movement. The grouping is about form, not origin: one comes from India and two from China, with different philosophies behind them. It is useful for reading research, because studies of one are often cited as if they covered all three. They do not.
The federal review says the evidence suggests a slight benefit for low-back pain, calls the research on neck pain, headaches and knee osteoarthritis promising but small, and finds little evidence of benefit for anxiety disorders. Different yoga styles across studies make results hard to compare. A spiritual practice can be valued for its own sake; its medical claims are a separate question with a modest answer.
The fact sheet notes that study samples have been predominantly women with higher education and income. That is also who practices in the United States, so the research describes its own population well and other populations poorly. Any claim about yoga "for everyone" has outrun its evidence. Ask who was in the study before applying the result to a different group.
The common injuries reported are sprains and strains, mostly to the knee or lower leg, and serious injuries are rare. The sheet advises beginners to avoid headstands, shoulder stands, the lotus position and forceful breathing, and warns that hot yoga risks overheating and dehydration. Safety here is about progression and supervision, as it is for any physical discipline.
The federal in-depth page defines tai chi by three parts: slow gentle movements and postures, a meditative state of mind, and controlled breathing, and notes its origin as a martial art that shifted toward health promotion. The spiritual framing varies by school and teacher. For a learner, the point is that a practice can migrate from one purpose to another and keep its form.
The review reports high-certainty evidence that tai chi may reduce the number of people who fall by 20%, and low-certainty evidence for a 19% lower rate of falls. Guidelines strongly recommend it for knee and hip osteoarthritis. Most other conditions carry small studies and cautious wording. One well-supported outcome does not license claims about the rest.
The federal page states plainly that instructors are not licensed and that no national certification standard exists. The same is true for most meditation and yoga teaching outside specific registries. A title such as "master" or "certified" therefore describes a lineage or a private program, not a regulated credential. Ask what the training was and how long it took.
Trepanowski and Bloomer's review describes Ramadan as about 12 hours of daily fasting for 28 to 30 days, Greek Orthodox fasting as 180 to 200 days a year avoiding dairy, eggs and meat with fish and oil restricted on some days, and the Daniel Fast as 21 days of unlimited plant foods with refined foods, caffeine and alcohol excluded. "Fasting" names three very different eating patterns.
The review lists Ramadan's exempt groups: the sick, travelers, pregnant or breastfeeding women, menstruating women and the debilitated. Exemptions are part of the rule, not a loophole, and other fasting traditions carry their own. When a study reports health effects of a fast, the people who were exempt are missing from it, which shapes who the findings describe.
The review calls the majority of Ramadan findings mixed, with weight, lipids and glucose moving in different directions across studies that differ in fasting hours, smoking and diet. Greek Orthodox fasting appears to lower body mass and cholesterol, with few studies. The Daniel Fast lowered cholesterol in one 21-day study, and HDL fell with it. A fast is a religious act first; its metabolic record is thin.
In Tykarski and Mróz's survey of Polish Camino de Santiago pilgrims, 19 of 30 named religious motives, 14 spiritual, 9 touristic, and a few recreational or sporting, with most naming more than one. The Pilgrimage Office registered 438,055 arrivals in 2022. A pilgrimage is a journey to a sacred place, and the sacred and the touristic travel the same path in the same person.
The Camino study had 30 survey respondents and 24 interviews, all Catholic and Polish, and 63% said the pilgrimage definitely strengthened family relationships. The authors state the sample is non-random and not representative, and warn that pilgrimage cannot be treated as a proven means of improving relationships. A glowing testimony from people who chose to go is the expected result.
F. Mystical experience
The Stanford Encyclopedia of Philosophy's entry warns against treating the two as the same. Religious experience includes feeling forgiven or sensing a presence at a service. Mystical experience, in the philosophers' usage, is a purported non-sensory or unitive awareness in which the usual divide between subject and object dissolves. Most of the 45% of US adults who report a sudden connection beyond this world are reporting the first kind.
James treated the mystic's inability to put the experience into words as defining rather than incidental. Ineffability is why mystical accounts from different traditions resemble each other in where language fails yet differ in the vocabulary they borrow. It also creates a research problem: a questionnaire asks people to rate an experience they call indescribable, and they answer anyway, so the scales include an ineffability item.
James's second mark is that mystical states feel like knowledge: the person believes they have seen how things are, immediately and without inference. The philosophical literature treats this as the experience's claim, not its proof. A learner should hold the two apart: the felt certainty is a reliable feature of the experience, and whether the insight is true is a separate question.
In an extrovertive experience the world is still perceived, but as unified or alive, as when a landscape seems one living whole. In an introvertive experience the senses fall away and the mystic reports a pure consciousness without content. Stace proposed a universal form of each. The distinction is the backbone of most modern questionnaires, which ask about both "external unity" and "internal unity."
The common-core position, associated with Stace, holds that the experience is the same everywhere and the doctrine layered on it differs. The encyclopedia distinguishes this from perennialism, which claims a shared core of doctrines rather than experiences. The thesis makes a testable prediction: strip the vocabulary and reports should converge. Whether they do is the live debate of the next concept.
Katz held that a mystic's socio-religious milieu over-determines what is experienced, so a Buddhist and a Christian do not have the same experience under different names. On the strong version, the experience carries no independent knowledge, since it is built from prior belief. The dispute is not settled by any single study; what you can do is notice when a claim assumes one side.
Ann Taves and Wayne Proudfoot argue that experiences are deemed religious or mystical after the fact, by the subject or by a community. Taves rejects strong constructivism in favor of a tiered, building-block process, in which an unusual experience is later assembled into a religious one. The practical lesson is that the label is a decision, and the same bodily event can be filed as illness, insight or grace.
Defenders hold that an experience of God has the structure of perception and so gives prima facie evidence, as seeing a tree does. The objection is that mystics across traditions report conflicting objects, which undercuts the reliability of such experiences as a source of knowledge. You do not need to settle the argument to teach it; you need to see that it is a philosophical dispute, not a scientific one.
The 30-item questionnaire, and its 4-item short form validated by Strickland and colleagues in a sample of 1,160 adults, descend from Stace's criteria, with items on internal and external unity, sacredness and the noetic quality folded into the mystical factor. The short form correlated 0.89 with the full scale. The instrument turns a philosophical description into a number, with the gains and losses that implies.
The short-form validation sample recalled experiences retrospectively, online, with no control over dose or setting, and the authors list this as a limitation. Scores also varied by substance in that sample. A questionnaire is a disciplined way to compare reports; the scores are evidence about memory and language as much as about the state, and a reader should not treat a threshold as proof an event occurred.
G. Meaning and self-transcendence
Kitson and colleagues' review settles on decreased self-saliency with increased connection to others and the environment, and cites Yaden's split into an annihilational component and a relational one. The two can come apart: a person can feel small without feeling connected. Whenever an experience is labeled self-transcendent, check which half the report describes.
The review contrasts Cloninger's self-transcendence, a measurable personality trait, with Reed's nursing concept of a capacity to expand self-boundaries that grows with age and illness, and with theorists who place it above self-actualization as a higher need. A scale built for one meaning does not measure another. Look at whether a study relied on a trait inventory or on a momentary rating.
Pamela Reed's Self-Transcendence Scale, developed with older adults, treats expansion of self-boundaries as a resource that relates positively to well-being and morale and negatively to depression. It is widely used in nursing studies of serious illness and aging. The concept explains why spiritual care in hospitals talks about connection and legacy rather than about doctrine.
The review notes Frankl's emphasis on reaching beyond oneself to serve others rather than maintaining constant self-focus. This is transcendence as a way of living, not an altered state, and it links the concept to meaning, since Frankl held that meaning is found in what one gives. The same word thus names an evening's experience and a decade's orientation.
The review states that deriving a specific measure is difficult, that several measures consider only the positive aspects and leave out experiences such as dissociation, and that some models have had their internal validity questioned. A scale that cannot register a frightening loss of self is measuring half the construct. Expect disagreements between studies that used different instruments.
The review cites Koenig's complaint that the term spirituality is often conflated with general good mental well-being. If a self-transcendence item asks about peace or purpose, a correlation with life satisfaction was built into the scale. This is the same tautology problem that affects spirituality measures, met again under a different name.
Koenig's tally found 42 of at least 45 studies, 93%, reported greater meaning and purpose among the more religious or spiritual, a higher share than for depression or anxiety. Meaning is also the outcome most likely to be written into spirituality scales themselves, so part of the consistency is measurement overlap. Read the proportion as strong direction and uncertain size.
Koenig reports that 29 of 40 hope studies, 73%, found only positive relationships, with similar patterns for optimism. These outcomes depend on self-report, as he concedes for character traits generally, and a hopeful person may be more drawn to practice as readily as practice may produce hope. The direction is consistent; the mechanism is open.
Koenig's account of spirituality as connection to whatever a person holds sacred implies that the sacred can be located in daily life, not only in formal religion. A parent who regards raising a child as a sacred task has, in research terms, sanctified it, and such appraisals are among the meaning sources spirituality scales try to capture. The term describes a way of seeing, not a ritual.
H. Awe and the small self
Following Keltner and Haidt, researchers define awe by perceived vastness, physical or conceptual, and a need for accommodation, the sense that existing understanding does not fit. A mountain view, a piece of music and another person's moral courage can all meet both conditions. Vastness alone is not awe; a large parking lot is vast and demands no revision.
Ugurlu and colleagues' diary study lists these as the documented elicitors. Nature dominates Western samples, but awe at other people's virtue and at crowds moving together are regular sources. Religious practice appears on the list as one source among several, which is why awe research belongs to spirituality without being owned by religion.
Across 171 healthcare workers and 306 community participants during the 2020 pandemic, more awe than a person's usual predicted less same-day loneliness, standardized effects of about −0.16 and −0.17. Controlling for gratitude roughly halved the effect, and in one sample it was not consistently significant once every other positive emotion was entered. A real signal, small and shared with other good feelings.
Daily awe predicted greater connectedness, measured as connection with nature, and connectedness carried a small part of the awe-to-loneliness link. The authors' account is that awe loosens self-focus and makes a person available to connect. A mediation that explains a fraction of a small effect is a hypothesis with early support, not a mechanism established.
The study's daily awe item was a single rating of "awe/amazed/wonder" from 1 to 5, and connectedness was one item about nature. The authors list this among their limitations, with a sample that was mostly older women during one unusual period. Single items cannot separate awe from amazement, so a reader should treat the daily results as about a broad family of wonder.
In Graziosi and colleagues' replication series, participants induced into awe reported a significantly smaller self, with a medium effect. The authors note it may be better read as a check that awe was induced than as an outcome of awe. A finding that always replicates because it restates the manipulation is still a finding, but it is not evidence that awe changes anything else.
Six studies with samples up to 2.5 times the originals found no reliable effect of awe on prosocial tendencies, ethical decision making, or belief in God and supernatural control. The authors conclude that several published awe studies did not replicate and suggest the original small samples produced false positives. A famous effect from one small study is a candidate, not a fact.
The replication authors propose that laboratory inductions deliver a micro-dose of awe, and that sustained or intense experiences, such as a wilderness trip or a profound ceremony, may be needed for other effects. That is a reasonable rescue and also unfalsified. The honest state of the field: mild awe is easy to induce and does little; strong awe is hard to study.
In the sixth study, the awe group did not report significantly more awe than controls, so its null results on time perception and life satisfaction say nothing about awe. The authors flag this. When you read any emotion-induction study, find the manipulation check first; a null result after a failed induction is not evidence of no effect.
I. Ritual, synchrony and community
Cho and colleagues showed 36 temple followers in Singapore 105 five-second clips of tang-ki rituals rated low, medium or high in arousal. High-arousal clips were rated more efficacious than medium or low, a large and reliable effect. Intensity read as power. This is a finding about judgment, not about whether anything in the ritual worked, and the authors frame it that way.
Social setting had no main effect on efficacy ratings, yet ratings varied less between people in groups than alone, a drop in standard deviation from 1.99 to 1.49. The authors call this social tuning: co-presence pulls individuals toward a shared reading. A community does not need to persuade anyone to produce agreement; sitting together narrows the spread.
The study's between-participant theta synchrony appeared only for low-efficacy clips, in one cluster of sites, with a false-discovery-rate value of 0.102 that misses the authors' own 5% threshold. They nonetheless describe it as first evidence of common mental states. Read "synchrony" headlines with the sample size and the threshold in view; this one is suggestive at best.
The participants in groups watched without communicating, which the authors name as both a design choice and a limitation. It let them ask whether simply being beside others changes judgment. The everyday analogue is a silent service or a shared vigil, where the convergence of mood comes from presence rather than argument. Co-presence is a mechanism in its own right.
The authors draw on Malinowski's account of ritual as anxiety reduction alongside Durkheim and Whitehouse on communal ritual. If ritual calmed, calming rituals should seem most effective; instead the bloodiest, most arousing clips were rated most efficacious. The result favors theories in which shared intensity, not relief, carries a ritual's force. Theories of ritual make different predictions you can check.
Whitehouse's distinction, which the study builds on, contrasts imagistic rituals, infrequent and emotionally intense, with doctrinal rituals, routine and often verbal. A once-in-a-lifetime initiation and a weekly liturgy are both ritual and do different work: the first fuses a small group through shared ordeal, the second maintains a large one through repetition. Classify a ritual before comparing its effects.
Pew found 48% of US adults have an item for spiritual purposes: more than a third have a cross, 19% jewelry with a spiritual purpose, 15% a shrine, altar or icon at home, 12% crystals and 9% a tattoo or piercing for spiritual reasons. Material practice is private as well as communal, and much of it happens in the home. A survey that counts only attendance misses it.
In Pew's survey, 77% spend time in nature at least a few times a month and 26% of them do so mainly to feel connected with something larger or with their true self. For comparison, 38% meditate that often. When researchers count spiritual practice as prayer and meditation, they count the less common forms and leave out the one most people actually do.
Pew found 64% of US adults look inward or center themselves at least a few times a month, and the figure was 78% among the spiritual-but-not-religious against 67% among the religious-and-spiritual, one of the few practices where the first group was higher. The wording is deliberately loose; it captures a private act that no tradition owns.
J. Spirituality and health research
Koenig's review of more than 3,300 studies is built mostly on cross-sectional and cohort designs. An association between attendance and lower mortality is compatible with attendance helping, with health permitting attendance, or with a third factor driving both. The review's own language, "associated with," is the accurate verb. Any sentence that upgrades it to "improves" has added a claim the design cannot carry.
Koenig asks directly whether disability causes people to turn to religion to cope, and notes that cross-sectional designs make it impossible to determine the order of causation. Someone too ill to attend services will appear in the low-attendance, poor-health cell for a reason unrelated to spirituality. Prospective designs that measure attendance before health changes reduce this problem; cross-sectional ones cannot.
Koenig observes that the studies finding higher blood pressure among the more religious had large African American samples, and he states that controlling for race in these analyses is simply not sufficient. Religious practice, discrimination, income and healthcare access travel together. A single covariate cannot untangle a shared history, so read "adjusted for" as "partly adjusted for."
Service attendance requires mobility, transport and energy, and the same traits that get a person to a weekly gathering predict survival independently. This selection effect is why attendance is the religious measure most tied to physical health while belief measures are not. When a study reports an attendance effect, ask how it handled baseline health and functional status.
Koenig counts 82 of 121 mortality studies, 68%, finding greater longevity and 6 finding shorter, and cites a pooled 37% survival increase for frequent attenders across three reviews. Longevity is the outcome where confounding by baseline health bites hardest, and the review says the evidence is observational. Report the number with its design, never alone.
Koenig's count: 61% of depression studies found inverse relationships, rising to 67% among the 178 most rigorous, with 7% finding more depression; 75% of suicide studies found inverse relationships. Suicide findings may reflect doctrine, social embedding or reporting. For depression, religious coping and community are the usual proposed mechanisms, and reverse causation applies.
Koenig reports 49% of anxiety studies with inverse relationships and 11% with more anxiety among the more religious, nearly all of the latter cross-sectional. An anxious person may pray more, or a demanding religious context may raise anxiety, and a snapshot cannot tell them apart. This is the clearest case of a result that the design determines.
Koenig counts 86% of alcohol studies and 84% of drug studies finding inverse relationships. Many traditions prohibit or discourage intoxication, and abstinent communities select for abstinent members, so the mechanism is partly rule and partly company. This pattern is also the one most likely to carry through to physical health outcomes such as liver disease and accidents.
Koenig writes that nowhere does he claim supernatural mechanisms, and he lays out pathways through coping, social support, health behaviors and possibly genetics. He also says spirituality is not a panacea. A reader who meets "religion is good for your health" should know that the researchers themselves describe health behaviors and belonging, which other institutions can also supply.
Koenig lists ways religion may be used to justify hatred and exclusion, may foster rigid thinking and obsessive practices, may produce excessive guilt over minor infractions, and may delay diagnosis and effective mental health care. These are not footnotes to a positive story; they are the other half of a mixed one, and the groups most harmed are often missing from the positive studies.
Bulbulia and colleagues applied the method to six annual waves of a New Zealand panel, with 38,477 non-attenders at baseline. A hypothetical "make everyone attend" intervention failed, because only 2% to 3% of non-attenders start attending each year, so there is no data on forcing attendance. The design's first service is to show which questions observational data cannot answer.
Under a supported intervention, a five-fold reduction in non-attendance probability, reliable effects appeared for meaning and purpose (0.085 standard deviations), forgiveness (0.075) and a handful more, each small. No reliable effects appeared for anxiety, depression, fatigue, social belonging, perceived support, sleep, alcohol or body mass. The authors call the effects selective.
The attendance effects that survived had E-value bounds around 1.16 to 1.25, meaning a modest unmeasured confounder could account for them, after adjustment for 62 baseline covariates. The authors treated values under 1.10 as insufficiently robust. The lesson is quantitative humility: the honest effect of attending services on well-being, in this setting, is small and fragile.
K. Spiritual struggle, bypassing and harm
The National Cancer Institute's summary reports that positive religious coping is linked to better quality of life and negative coping to poorer quality of life. The Brief RCOPE measures each with five items. The two are not ends of one scale; a person can score high on both. If a study reports that "religious coping helped," see whether it measured the negative form too.
The cancer summary states that negative religious coping is uncommon but strongly predicts poor adjustment to disease, and that increasing spiritual struggle went with poorer emotional adjustment in a breast cancer survey. Low prevalence hides a large effect in averages. For the clinician or chaplain, the rare patient who feels abandoned or punished is the one to look for.
The summary describes spiritual distress resulting from the belief that cancer reflects punishment by God, and notes that few patients become preoccupied with it. The thought is a form of negative coping with a specific content. Recognizing it matters because it is addressable in conversation, and because dismissing it as irrational misses that it is doing emotional work for the person.
The National Cancer Institute reports that spiritual well-being, especially the meaning and peace factor, is associated with lower depression and anxiety, whereas religiousness alone was not consistently linked. This separates a felt state from an affiliation, and it also revives the tautology worry: a peace item correlating with low anxiety is close to measuring the same thing.
Upenieks and colleagues define struggles as doubt, conflict, anxiety or concern about aspects of religious or spiritual life, and draw their items from the negative coping subscale and from Exline's struggles scale, with divine struggles the majority of items. The domains are distinct experiences: doubting a doctrine and feeling abandoned by God are not the same struggle.
In three cohorts of 521, 828 and 2,598 adults, struggle scores predicted depressive symptoms in each, with similar coefficients. The data are cross-sectional, so struggle may follow depression as easily as precede it, and the samples cannot be projected onto the US population. The consistency across very different groups is the durable part; the direction is not settled.
The interaction was negative in all three cohorts: struggle predicted depressive symptoms most strongly among those who did not believe in miracles. The authors read belief as a form of hope or external control. The same belief that an outsider may call unrealistic appears, in this sample, to soften the cost of doubt. Beliefs have functions as well as truth values.
The term comes from John Welwood in 1984, who described religion or spirituality used as a coping mechanism that represses unresolved personal problems rather than resolving them. Motiño and colleagues' scale has two factors: psychological avoidance, the larger, and spiritualization, reading daily events as spiritually significant. The practice itself is not the bypass; the use of it to avoid is.
Scores averaged 22.4 in Honduras and 9.6 in Spain on the same 12-item scale, in samples of 262 and 173. In Honduras, Christian affiliation and more practices predicted bypass; in Spain, studying religious texts predicted less of it. The authors conclude bypass must be understood within its culture and can be functional or dysfunctional depending on context. A score is not a diagnosis.
Patel and Kumar's synthesis of five qualitative studies found pain as the entry point and bypass as adaptive transitional scaffolding that brought short-term relief, then psychological stasis while spiritual practice continued. Resolution came through a relational disruption or crisis and a trusted, culturally fluent catalyst, and ended in integrating spirituality rather than abandoning it.
The synthesis found bypass maintained by community scripts, by religious authority that interpersonally enforced emotional suppression, and by structural factors such as stigma. Bypass is often read as an individual defense; these accounts show it as something a group can require. The fix the participants described was relational, which is why a solitary resolve rarely ended it.
Lindahl and colleagues interviewed 60 Buddhist practitioners and 32 experts and sorted 59 categories of meditation-related effects into seven domains. The most common were fear, anxiety, panic or paranoia (82%), changes in motivation or goals (78%), and changes in sense of self. The sample was chosen for challenging experiences, so the percentages describe that group, not meditators in general.
In the study, 72% of practitioners' challenges occurred during or immediately after a retreat, 93% named the amount or intensity of practice as a factor, and 73% reported moderate to severe impairment in at least one domain, with 17% reporting suicidality. Intensity and dose are the recurring factors. A practice sold as uniformly gentle is being described without this literature.
The federal fact sheet reports a 2020 review of 83 studies in which about 8% of participants had a negative effect, mostly anxiety and depression, comparable to rates for psychological therapies, while noting that few studies have examined harms at all. An absence of reported harm in a trial that did not measure harm is not safety evidence. Ask whether adverse events were recorded.
L. Psychedelic-experience research
The National Institute on Drug Abuse groups these drugs by brain mechanism and separates them from dissociatives such as ketamine, which act on NMDA glutamate receptors, and from MDMA. Ayahuasca is a DMT-containing tea and peyote a mescaline-containing cactus, both with long ceremonial histories. The pharmacological class is the research unit; the ritual context is a separate variable.
As the institute described it in 2026, the Food and Drug Administration had granted Breakthrough Therapy designation to two psilocybin formulations studied for depression and had approved only the ketamine derivative esketamine, while most of these drugs stayed federally controlled and some states and the District of Columbia had decriminalized possession. Status drifts; the date is part of the fact.
The institute notes that effects are hard to predict and vary with the person's mindset and surroundings as well as the drug. This is why ceremonial use, a clinical session with two monitors, and an unsupervised party produce different reports from the same compound. Any study of psychedelic spirituality has to describe its setting, or it has not described its intervention.
The institute reports fear, confusion and panic as short-term risks, injuries when no one is present to help, and that 11% of people with a challenging psilocybin experience outside a medical setting said they had put themselves or others at risk. Hallucinogen persisting perception disorder is rare and poorly studied. Psychedelics may trigger psychosis in predisposed people. These are research facts, not use guidance.
The institute states that microdosing is not established as safe or effective, and the largest placebo-controlled study of it, described below, found its benefits explained by expectation. The practice is widespread in wellness culture and under-studied in medicine, which is the gap a learner should notice when a confident claim appears.
Szigeti and colleagues gave participants instructions to fill capsules, sort them into envelopes with QR codes and randomize themselves into placebo, microdose or half-and-half arms over four weeks. Of 1,630 who signed up, 240 started and 191 finished. The design trades control of the substance for a sample and a question that drug law makes hard to study otherwise.
Both arms improved from baseline to week five and the authors report no significant between-group differences. Small acute differences in mood favored microdosing but were largely explained by what participants guessed they had taken. The authors conclude the improvements are explained by the placebo effect rather than the drug. Expectation produced the benefit that practice reports attribute to the compound.
A random guesser who knew the ratio would score about 62%; participants reached 72% and were better at detecting microdoses than placebos, mostly from body and perceptual sensations. In 21 of 22 comparisons, the guess predicted outcomes more than the capsule did. Blinding is the central weakness of psychedelic trials, since a full dose is unmistakable; this study measured the leak.
In Strickland and colleagues' retrospective sample of 1,160 adults, higher Mystical Experience Questionnaire scores correlated with greater reported reductions in depression and anxiety, at about 0.18 to 0.21. Scores ranked DMT above ayahuasca and LSD, then psilocybin, then MDMA. The correlation is the basis for the claim that the mystical quality matters; its size is the reason for caution.
The 26-item scale and its 7-item short form rate what popular language calls a bad trip. In the same sample, challenging-experience scores had only trivial associations with later anxiety change and none with depression change. A difficult session and a mystical one are measured separately, and a person can report both; the research vocabulary refuses to collapse them into good or bad.
M. Secular and nature spirituality
Pew found 59% of the spiritual-but-not-religious called nature essential to their spirituality against 35% of those who are both religious and spiritual, and 71% versus 46% believed spirits can inhabit natural landscapes. Nature spirituality is therefore not a niche; it is the center of gravity for one large group and a substantial strand in the other.
The survey reports 73% of the spiritual-but-not-religious believing in some other higher power or spiritual force, with 20% believing in the God of the Bible, while the figures run 15% and 84% among the religious-and-spiritual. Secular spirituality in the United States is mostly not atheist; it relocates the sacred rather than removing it. Measures that ask only about God miss this group.
In Pew's data, 42% of the spiritual-but-not-religious said religion causes division and intolerance, against 12% of the religious-and-spiritual, and 13% versus 57% said it encourages right behavior a great deal. The label marks an attitude toward institutions as much as a set of practices. Someone leaving a religion for its politics and someone never raised in one both land here.
Among spiritual adults, around 40% or more selected open-mindedness, making their own beliefs, and connection with other people as essential, in the same range as following a religious faith. The seeker's independence is a value held by a large minority across both groups, not a defining trait of the unaffiliated alone. Treat "I follow my own path" as common rather than distinctive.
Pew found that 54% of the spiritual-but-not-religious group were unaffiliated, and most of them believed in a soul, and in something that lies beyond the natural world. Atheists and agnostics who want neither label are unaffiliated too. The phrase "the rise of the nones" describes institutions, not beliefs; what people believe and do has to be asked separately, and the survey did.
Pew found 46% of adults feel a deep sense of wonder about the universe at least once or twice a month, and 44% feel deep spiritual peace that often. Wonder is the emotion that secular and religious spirituality share most completely; awe research treats it as a measurable state. A curriculum that located spirituality only in belief would miss its most common form.
Of the 77% who spend time in nature regularly, 26% do so mainly to feel connected; of the 64% who center themselves, 44% do; of the 38% who meditate, 22% do. The same act can be exercise for one person, rest for another and spirituality for a third, and it can shift from day to day. To count an activity as spiritual practice, you have to ask why it was done, which most surveys do not.
N. Spiritual care and chaplaincy
The National Cancer Institute's summary reports an inpatient survey in which 77% said physicians should consider spiritual needs and 37% wanted religious beliefs addressed more often, and notes that physicians tend to underestimate this. Among advanced cancer patients, 72% said the medical system did not support their spiritual needs. The gap is between what patients want asked and what gets asked.
FICA asks about Faith, Importance, Community and how to Address it in care; SPIRIT covers belief system, personal spirituality, integration with a community, ritual practices and restrictions, implications for medical care, and terminal events planning. Koenig describes such a history as a two-minute screen by the health professional. These tools open a conversation; they do not score it.
The summary states that the interview tools have not been validated as measures and that most standardized tools presuppose belief in God, which may be a poor fit for atheist or agnostic patients. Being clinically useful and being psychometrically unproven can go together. The FACIT-Sp is an exception: its wording does not presuppose belief. Know which kind of instrument a study used.
The trial of 115 patients found physicians comfortable in 85% of encounters and 76% of patients rating the inquiry useful, with improved depression and quality-of-life scores at three weeks. A single small trial with a short follow-up is a promising signal. It does show that asking is acceptable to most patients, which is the barrier clinicians most often cite.
The summary records that the groups differ on the appropriateness of practitioner-patient prayer and advises following the patient. Koenig adds that a health professional should never do anything related to religion or spirituality that involves coercion, and that prayer should be patient-initiated. The boundary protects the patient from a clinician's beliefs, and the clinician from a role that is not theirs.
Koenig calls chaplains the true experts in this area and advises referral for anything beyond simple needs, and the cancer summary notes chaplains are generally available in large medical centers but rarely in outpatient settings. In one study, 46% of advanced cancer patients received pastoral visits, which were linked to better quality of life near death, an observational finding with the usual limits.
Jones and colleagues' scoping review describes moral injury as enduring psychosocial and spiritual harm from events that transgress deeply held moral convictions or involve betrayal by leaders, and notes that not everyone exposed to such events is affected. It is studied mostly in military samples. The concept gives chaplaincy a clinical vocabulary for guilt, shame and loss of trust that a trauma diagnosis does not capture.
The review found chaplain-delivered interventions used pastoral care, spiritual counseling and prayer alongside therapeutic techniques, while mental health providers adapted trauma therapies, and several programs paired the two professions. Modern chaplaincy is interfaith and serves patients of any belief or none, which is why its toolkit is not only liturgical.
The review found 26 quantitative and 9 qualitative studies, only 6 of them randomized trials, most in US military men, with no validated moral injury measure available and no appraisal of evidence quality conducted. The authors state that current evidence cannot identify preferred approaches. A field can be clinically active and evidentially early at the same time.
Whitehead and colleagues' realist review found five evaluated interventions in Europe: Community Chaplaincy Listening and Primary Care Chaplaincy in Scotland, Chaplains for Wellbeing in England, Spiritual Caregivers in the Netherlands, and a German cluster-randomized trial in which general practitioners took spiritual histories from adults over 70. Only 13 articles covered all five.
The review's program theory names time, attentive listening, person-centered support and permission to explore existential questions as mechanisms, with reported outcomes in emotional well-being, self-efficacy and reduced general practitioner attendance. The authors note no validated spiritual-health outcome measure was used, so benefit was read through general well-being, and potential harms were rarely examined.
O. Weighing spiritual-wellness claims
The National Center for Complementary and Integrative Health describes Reiki as hands placed on or just above the body to direct energy that facilitates the person's own healing response, and states that there is no scientific evidence supporting the existence of the energy field thought to play a role. A mechanism claim and an outcome claim are separate; here the mechanism has no support, so any benefit would need another explanation.
The federal page says Reiki has not been clearly shown to be useful for any health-related purpose, that most research has not been of high quality and results have been inconsistent, and that no harmful effects have been documented. The two verdicts differ: "not shown to work" is not "shown not to work," and this is the first. Low harm is also not evidence of benefit.
Reiki is practiced as a spiritual discipline by many, and a quiet, attentive session plausibly feels good. None of that bears on whether energy is transferred or illness is treated. The comparative stance of this curriculum applies here: no tradition is ranked, and every tradition's factual claims about the body face the same evidence standards as anyone else's.
The fact sheet repeats that much of the research is preliminary or not scientifically rigorous and may have been interpreted too optimistically, then lists findings condition by condition with their study counts and quality. The pattern to learn is the paired sentence: a positive result, then its quality grade. A wellness claim that quotes only the first half has removed the half that matters.
The fact sheet notes that mindfulness beat no treatment for anxiety and depression and worked as well as evidence-based therapies in one large analysis, while a later analysis found only some approaches matched cognitive behavioral therapy and no long-term effects beyond two months. The comparison group determines the headline. Ask "compared with what?" before "did it work?"
Every one of the center's practice pages carries the same advice: do not use the practice to postpone seeing a health care provider about a medical problem, ask about the instructor's training, and tell your providers what you do. The caution is not anti-spiritual; it marks the point where a practice stops being a practice and starts standing in for treatment.
The federal pages advise asking about the training and experience of any instructor and state that tai chi has no national certification standard. A "certified" or "master" teacher holds a private credential from a school or lineage, which may be rigorous or a weekend. For a learner evaluating a program, the useful questions are how long the training was and who ran it.
Meditation use rose from 7.5% to 17.3% of US adults between 2002 and 2022, and the same fact sheet grades most of the evidence as preliminary. Popularity is often offered as if it settled the question, in wellness marketing and in conversation. It settles only that many people find the practice worth their time, which is itself a legitimate reason and a different claim.
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