Transpersonal Psychology Resources
A curated companion to the talks, papers and frameworks shaping the transpersonal field, grounded in evidence.
Welcome
This hub is a curated starting point for exploring transpersonal psychology, not a complete bibliography. Use the contents list on the left to jump to a section, search by title, author, topic, citation or tag, or filter by category and resource type. Each entry carries a plain-language summary, a citation and an open-source link where one is available; video and audio items include an embedded player where possible.
The collection is not exhaustive. If you find a resource you would like added, or a correction to an existing entry, please email Mark Anns at admin@psychandlifestyle.com.
This hub is created and maintained by Mark Anns, Health Psychologist, Psych & Lifestyle.
For transparency: this collection has been compiled from colleague and member suggestions together with the use of AI chat engines to search the literature.
What happens in the brain during spiritual experience?
Since the 1990s, researchers have studied the brains of people meditating, praying, entering trance and taking psychedelics, and some patterns recur. Focused meditation engages networks that control attention, and experienced meditators show quieter activity in the default mode network, which supports self-referential thought (Lutz et al., 2008; Brewer et al., 2011; Tang et al., 2015). Early imaging also linked deep absorption to reduced activity in parietal areas that help locate the self in space, though these studies were small (Newberg et al., 2001).
Prayer to a personal God draws on the same social-cognition networks people use in conversation (Schjoedt et al., 2009), and felt spiritual experience activates reward and salience systems (Ferguson et al., 2016). Studies of dhikr, mediumistic trance and Sufi whirling extend this work beyond Western Christian and Buddhist samples (Saraei et al., 2023; Peres et al., 2012; Cakmak et al., 2017). Newer theories describe these findings in terms of predictive processing: shifts in the brain's expectations, and in how much weight it gives incoming signals, can loosen the usual sense of self (van Elk & Aleman, 2017; Carhart-Harris et al., 2014; Jedlicka & Havenith, 2025).
Two cautions matter. A brain correlate does not settle whether an experience points beyond the brain, and most authors in this collection say explicitly that their data cannot answer that. Some well-known claims have also not held up: Persinger's 'God Helmet' findings failed an independent double-blind replication, in which suggestibility, not the magnetic field, predicted who reported a sensed presence (Granqvist et al., 2005).
Start here: brain and spiritual practice
- The neuroscientific study of spiritual practices
- Attention regulation and monitoring in meditation
- Meditation experience is associated with differences in default mode network activity and connectivity
- The measurement of regional cerebral blood flow during the complex cognitive task of meditation: A preliminary SPECT study
- Highly religious participants recruit areas of social cognition in personal prayer
- Reward, Salience, and Attentional Networks Are Activated by Religious Experience in Devout Mormons
Beyond Western samples
- Comparing the three states of Dhikr, meditation, and thinking about God: An fMRI study
- Neuroimaging during trance state: A contribution to the study of dissociation
- A possible role of prolonged whirling episodes on structural plasticity of the cortical networks and altered vertigo perception: The cortex of Sufi whirling dervishes
Theory
- Brain Mechanisms in Religion and Spirituality: An Integrative Predictive Processing Framework
- The Entropic Brain: A Theory of Conscious States Informed by Neuroimaging Research with Psychedelic Drugs
- Religious and spiritual experiences from a neuroscientific and complex systems perspective
A claim that did not replicate
Read these two together.
Were contemplative texts written as manuals for producing spiritual experience?
A central question for anyone reading contemplative literature is whether its authors meant it as a practical manual for producing a particular state. White (1996) and Flood (2004) argue that yogic, alchemical and ascetic texts worked as training programmes for body and mind. Lindahl et al. (2014) compare Buddhist textual accounts of meditation-induced light with reports from contemporary practitioners and with neurobiological explanations. Sharf (1995) gives the main counterargument: many path descriptions served ritual and doctrinal purposes and should not be read as first-person reports of experience. Reading both sides alongside a primary text lets you judge the claim for yourself.
Texts as technical manuals: for
- The alchemical body: Siddha traditions in medieval India
- The ascetic self: Subjectivity, memory and tradition
- A phenomenology of meditation-induced light experiences: Traditional Buddhist and neurobiological perspectives
- Reading, Writing, and Reciting
- Western esotericism: A guide for the perplexed
Texts as technical manuals: against
- Buddhist modernism and the rhetoric of meditative experience
- Prisoners of Shangri-La: Tibetan Buddhism and the West
Primary texts to test the claim against
Read a short section with the scholarship above in mind.
When does a spiritual experience need clinical support?
Some spiritual experiences are intense, unsettling or disruptive, and people sometimes bring them to clinicians. Transpersonal researchers have proposed that some of these are spiritual emergencies: transformative crises that may need support rather than treatment as illness (Lukoff, 1998; Grof & Grof). In 1994 the DSM-IV added a related category, religious or spiritual problem (V62.89), for distress tied to religious or spiritual experience that a mental disorder does not better explain (Lukoff, 1998).
The hardest practical question is telling a spiritual crisis from the early or acute phase of psychosis. The symptoms can overlap, and the same experience can be read as meaningful, distressing, or both. Clinical studies have looked at whether clinicians can separate religious belief from delusion, and how cultural context changes the picture (see the 'Telling it apart from psychosis' group). Measurement is also unsettled: scales such as the Spiritual Emergency Scale exist, but they have mostly been tested on small, largely Western samples.
This question is open, not a diagnostic guide. Treat the papers as framing for your own thinking. Any clinical decision should follow current guidelines and the judgement of a qualified clinician.
Start here: the concept
- From Spiritual Emergency to Spiritual Problem: The Transpersonal Roots of the New DSM-IV Category
- The Grofs' model of spiritual emergencies in retrospect: Has it stood the test of time?
- Spiritual emergency: The understanding and treatment of transpersonal crises
- Introduction to the special topic section: Spiritual emergency and spiritual emergence
Measuring and assessing
- Development of a Spiritual Emergency Scale
- Assessing Spiritual Crises: Peeling Off Another Layer of a Seemingly Endless Onion
- Religious or spiritual problem? The clinical relevance of identifying and measuring spiritual emergency
Telling it apart from psychosis
Read these together, alongside the clinical overview above.
- Faith or delusion? At the crossroads of religion and psychosis
- Vectorial cerebral hemisphericity as differential sources for the sensed presence, mystical experiences and religious conversions
- "If you talk to God, you are praying; if God talks to you, you have schizophrenia": Distinctions between psychosis and spiritual experiences among Christians
- Psychosis or Spiritual Emergency: The Potential of Developmental Psychopathology as a Framework for Clinical Assessment
- Spiritual emergence, psychosis, and personality differentiation, identification, and measurement
- Differences in voice-hearing experiences of people with psychosis in the USA, India and Ghana: Interview-based study
- The difference between spiritual crisis and psychosis - Dr Tim Read
- Psychosis or spiritual awakening
Lived accounts and practice
What are altered states of consciousness?
There is no single agreed definition of an altered state of consciousness. The phrase usually means a shift in awareness, attention, sense of time, self-experience or perception away from a baseline described as normal waking consciousness. Charles Tart argued that each state needs its own methods of study (States of Consciousness and State-Specific Sciences; Charles Tart: What are Altered States of Consciousness?). Earlier mapping work placed ecstatic and meditative states on a shared map (A Cartography of the Ecstatic and Meditative States). A recent consensus taxonomy tries to order the field by the features that define each state (A consensus taxonomy of altered (nonordinary) states of consciousness).
Researchers now measure states with questionnaires, databases and experiments, including the Altered States Database and tests in virtual reality (see the Measuring group). Theories of how states arise, such as the entropic brain and transient hypofrontality, try to explain why very different triggers (meditation, breathwork, drugs, drumming) can produce overlapping experiences.
The main caution is that 'altered' depends on what counts as normal. Baselines differ across cultures, so a state that is ordinary in one tradition may be treated as a disorder in another. Any study should state its definition of the baseline explicitly.
Start here: the concept
- Altered States of Consciousness
- Psychobiology of Altered States of Consciousness
- A consensus taxonomy of altered (nonordinary) states of consciousness: Bringing order to disarray
- States of Consciousness and State-Specific Sciences
Mapping and measuring
- A Cartography of the Ecstatic and Meditative States
- The Altered States Database (ASDB): Psychometric data from a systematic literature review
- Measuring altered states of consciousness in virtual reality: A systematic analysis of assessment methods
Theory
- Functional neuroanatomy of altered states of consciousness: The transient hypofrontality hypothesis
- Brain Mechanisms in Religion and Spirituality: An Integrative Predictive Processing Framework
- The Entropic Brain: A Theory of Conscious States Informed by Neuroimaging Research with Psychedelic Drugs
How common are they?
- Yoga and Meditation-Induced Altered States of Consciousness are Common in the General Population
- Altered States of Consciousness are Prevalent and Insufficiently Supported Clinically: A Population Survey
Clinical use
What can cross-cultural studies and anthropology tell us about altered states of consciousness?
Anthropologists and cross-cultural researchers have documented altered states in many societies, and the same kinds of experience are interpreted in very different ways. A holocultural analysis looks at which societies use trance and ecstasy and how these fit with other cultural patterns (see the Comparative group). Shamanism is a case in point: comparative work asks whether 'shamanism' names a shared phenomenon or a category that outside researchers imposed on diverse practices (Cross-Culturally Exploring the Concept of Shamanism; The Cultural Evolution of Shamanism).
Possession and trance show the same pattern. Studies from Southeast Asia, Sulawesi, the Philippines, Bangladesh, Türkiye and Saudi Arabia describe experiences that local people read as spirit possession or jinn, while clinicians elsewhere may classify them as dissociation or psychosis. Music, rhythm and ritual are often part of how these states are induced (Music and trance; The rhythms of trance). Sufi practices such as dhikr and sema are now studied with neuroimaging, which tests whether brain patterns are shared across traditions.
Two cautions apply. Clinical categories such as ICD-11's possession trance disorder and the DSM-5 cultural formulation are themselves products of particular cultures, and the cultural invariance debate asks whether diagnostic criteria for psychosis travel across societies. Most comparative data are small, descriptive or drawn from clinical populations, which can make ordinary religious experience look pathological.
Comparative and holocultural
- Altered states of consciousness within a general evolutionary perspective: A holocultural analysis
- Cross-Culturally Exploring the Concept of Shamanism
- The Cultural Evolution of Shamanism
- Shamanism and Cognitive Evolution
- Shamans, Priests and Witches: A Cross-Cultural Study of Magico-Religious Practitioners
Trance and possession across cultures
- Spirit possession in Buddhist Southeast Asia: Worlds ever more enchanted
- The voice of the winds versus the masters of cure: Contested notions of spirit possession among the Lauje of Sulawesi
- Understanding spirit possession in the Philippines: A social representations approach
- Music and trance: A theory of the relations between music and possession
- A Fragmented Mind: Altered States of Consciousness and Spirit Possession
- The mind possessed: Well-being, personality, and cognitive characteristics of individuals regularly experiencing religious possession
Dhikr, sema and whirling
- Comparing the three states of Dhikr, meditation, and thinking about God: An fMRI study
- What happens in the brain of a Semazen when they are in the ecstatic state? (report of Üsküdar University fMRI study of Sema meditation)
- A possible role of prolonged whirling episodes on structural plasticity of the cortical networks and altered vertigo perception: The cortex of Sufi whirling dervishes
Ritual and rhythm
- Ingredients of ‘rituals’ and their cognitive underpinnings
- The Ritual Process: Structure and Anti-Structure
- The psychology of rituals: An integrative review and process-based framework
Classification and its limits
Read these with the overview's second caution in mind.
What is esotericism, and what can we learn from magical systems?
Esotericism is a broad label for knowledge traditions that claim hidden or inner truths, including Western hermeticism, alchemy, astrology, occultism and modern magic. Academic study long treated it as rejected knowledge: ideas the mainstream excluded, and that scholars have only recently taken seriously (Esotericism and the Academy). Whether it is one category or a set of loosely related traditions is still debated, and the broader history of these traditions is covered in Arcana mundi.
Magical systems are a way to study how people structure ritual, attention and belief. Anthropologists and historians have asked what magic does for practitioners, including how it shapes meaning and social life (Magic in consciousness; The nature of magic: an anthropology of consciousness; Persuasions of the Witch's Craft). Ritual theory supplies tools for analysing these practices (The Craft of Ritual Studies; The Ritual Process). Psychological work on magical thinking, and on ritual's effects on anxiety and performance, offers testable angles (Magical thinking and magical experience; Don't stop believing: rituals improve performance by decreasing anxiety).
What can we learn? Magical systems show how symbols, bodily practice and expectation can change experience. Parallels with placebo research are often drawn, and the reading list sets out both the case for and the limits of that comparison. Caution applies throughout: most evidence is historical, interpretive or small-scale, and practitioner reports are not independent measures. Claims about supernatural causes lie outside what the evidence can test.
Concepts: what is esotericism?
- Esotericism and the Academy: Rejected Knowledge in Western Culture
- Intersection of Psychology, Esotericism, and Cultural Development
- Arcana mundi: Magic and the occult in the Greek and Roman worlds
Ritual theory
- The Craft of Ritual Studies
- The Ritual Process: Structure and Anti-Structure
- Ingredients of ‘rituals’ and their cognitive underpinnings
- The psychology of rituals: An integrative review and process-based framework
Magic as practice
- Persuasions of the Witch’s Craft: Ritual Magic in Contemporary England
- Ritual embodiment in modern Western magic: Becoming the magician
- "Cthulhu gnosis": Monstrosity, selfhood, and secular re-enchantment in Lovecraftian occultural practice
- Condensed chaos: An introduction to chaos magic
Magic and the mind
- The nature of magic: An anthropology of consciousness
- Magical thinking and magical experience as dimensions of living consciousness
- Editorial: The psychology of magic and the magic of psychology
- Magic in consciousness
Placebo and ritual
Read these with the overview's caution in mind.
- Placebo studies and ritual theory: A comparative analysis of Navajo, acupuncture and biomedical healing
- Spirituality: An overlooked predictor of placebo effects?
- Don't stop believing: Rituals improve performance by decreasing anxiety
Primary texts to test the claim against
Read a short section with the scholarship above in mind.
Are drug-induced and meditative mystical experiences the same?
Psychedelic drugs and long meditation can both produce experiences people describe as mystical: a sense of unity, loss of ordinary boundaries of self, a feeling of sacredness, and deep positive mood. Researchers have tried to test whether these are the same experience. Psilocybin studies using validated questionnaires found that high-dose sessions reliably produced mystical-type experiences that participants rated as personally meaningful, and some effects persisted months later (Psilocybin Can Occasion Mystical-Type Experiences; Validation of the Revised Mystical Experience Questionnaire). A survey compared naturally occurring God encounters with those produced by psilocybin, LSD, ayahuasca and DMT (Survey of subjective God encounter experiences). Meditation studies report changes in self-referential brain networks in experienced practitioners (Meditation experience is associated with differences in default mode network activity). A shared mechanism has been proposed in terms of transient hypofrontality and the entropic brain (Functional neuroanatomy of altered states of consciousness).
Religious studies asks a different question: whether a category such as 'mystical' can be applied across traditions at all. Huston Smith, reflecting four decades on, distinguished altered states from altered traits, asking whether an experience changes how a person lives (Do drugs have religious import? A 40-year retrospective). Primary texts from the mystical traditions, such as Eckhart's sermons and John of the Cross's Dark Night, describe states reached through long discipline and can be read against reports from drug sessions.
The current answer is that the experiences overlap in content, but no study has shown they are identical. Three cautions apply. Mystical experience is measured with scales built for particular samples, so the labels partly reflect the instruments. Suggestibility and expectation can shape reports, as the sensed-presence replication shows. And meditation can bring challenging experiences as well as positive ones, which the psychedelic literature often leaves out.
Psychopharmacology: psilocybin and mystical-type experience
- Psilocybin Can Occasion Mystical-Type Experiences
- Validation of the Revised Mystical Experience Questionnaire in Experimental Sessions with Psilocybin
- Survey of subjective "God encounter experiences": Comparisons among naturally occurring experiences and those occasioned by the classic psychedelics psilocybin, LSD, ayahuasca, or DMT
- Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin
Meditation neuroscience
- Advanced meditation alters consciousness and our basic sense of self
- Neuroelectrophysiological correlates of extended cessation of consciousness in advanced meditators
- Meditation experience is associated with differences in default mode network activity and connectivity
- Awakening is not a metaphor: The effects of Buddhist meditation practices on basic wakefulness
Shared mechanisms (neuroscience and psychopharmacology)
- Functional neuroanatomy of altered states of consciousness: The transient hypofrontality hypothesis
- The Entropic Brain: A Theory of Conscious States Informed by Neuroimaging Research with Psychedelic Drugs
- Why revelations have occurred on mountains? Linking mystical experiences and cognitive neuroscience
Measuring mystical experience (psychology of religion)
- The Construction and Preliminary Validation of a Measure of Reported Mystical Experience
- Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation
Religious studies and primary texts
- Do Drugs Have Religious Import? A 40-Year Retrospective
- The complete mystical works of Meister Eckhart
- Dark night of the soul
Caveats: suggestibility and adverse effects
Read these with the overview's cautions in mind.
- Sensed presence and mystical experiences are predicted by suggestibility, not by the application of transcranial weak complex magnetic fields
- Vectorial cerebral hemisphericity as differential sources for the sensed presence, mystical experiences and religious conversions
- The Varieties of Contemplative Experience: A Mixed-Methods Study of Meditation-Related Challenges in Western Buddhists
- Prevalence of meditation-related adverse effects in a population-based sample in the United States
- Leveraging meditation research for the study of psychedelic-related adverse effects
Transpersonal and clinical
- Psychedelic experiences and long-term spiritual growth: A systematic review
- Exploring the role of psychedelic-assisted therapy in enhancing spirituality and mystical experiences in patients with life-threatening illnesses: A systematic review
- The renewal of psychedelic research: Implications for humanistic and transpersonal psychology