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Association between mystical-type experiences under psychedelics and improvements in well-being or mental health – A comprehensive review of the evidence

Samuli Kangaslampi

Journal of Psychedelic Studies March 3, 2023 DOI: 10.1556/2054.2023.00243 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Systematic review Cross-sectional Preregistered Peer reviewed
Sample size 44
Population Healthy people and clinical populations
Topics Mystical experience
Key findings Mystical-type experiences under psychedelics are associated with improvements in well-being and mental health, but psychological insights and emotional breakthroughs may be as or more important.

Abstract

Ingestion or administration of classic psychedelics is sometimes associated with improvements in well-being or mental health. Acute mystical-type experiences that psychedelics occasion have been suggested to be related to such improvements. Meanwhile, other features of the psychedelic experience, such as psychological insights and emotional breakthroughs, are also increasingly being studied. This review aimed to collect and assess the available evidence for mystical-type experiences under psychedelics associating with medium-to-long term improvements in well-being or mental health, on their own and as compared with other features of the acute experience.I conducted a pre-registered, comprehensive review of existing empirical studies on the topic, based on a systematic search of the literature.Forty-four eligible studies were found, with most reporting positive associations between mystical-type experiences and improvements in well-being or mental health. The current level of evidence appeared stronger among healthy people, in cross-sectional studies, and for links with positive changes in general well-being and life satisfaction, attitudes and behavior, and anxiety, than for depression or other aspects of well-being and mental health. A few studies suggested that psychological insights and emotional breakthroughs may be as or more closely associated with positive changes than mystical-type experiences.Despite their significant limitations, the identified studies suggest that mystical-type experiences under psychedelics are associated with improvements in some areas of well-being. However, psychological insights and emotional breakthroughs might be at least as important and should also be measured in future studies.

Comparable studies

Other systematic reviews and meta-analyses on mystical experience, most cited first.

Study Year Design Participants
Psychedelics, Mystical Experience, and Therapeutic Efficacy: A Systematic Review 2022 Systematic review
Insights on psychedelics: A systematic review of therapeutic effects. Participants in peer-reviewed studies on classic psychedelics at psychoactive levels 2025 Systematic review n = 98
The Effects of Ayahuasca on Psychological Disorders: A Systematic Literature Review. 2024 Systematic review
Exploring the role of psychedelic-assisted therapy in enhancing spirituality and mystical experiences in patients with life-threatening illnesses: A systematic review. Patients with life-threatening illnesses, majority having cancer 2025 Systematic review n = 140
Ketamine as a mental health treatment: Are acute psychoactive effects associated with outcomes? A systematic review. Adults with a psychiatric diagnosis (depression, substance use disorders, social... 2020 Systematic review n = 891

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