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Jan M. Keppel Hesselink

5 papers in the library · 14 citations · publishing 2018-2026

Papers

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Research Approaches in Esoteric Psychology: A Sevenfold Taxonomy and the Case for First-Person Phenomenology

Open Mind June 16, 2026 Jan M. Keppel Hesselink

The academic study of Western esotericism has developed a sophisticated set of research approaches over the past three decades: historical-philological, discursive, sociological, anthropological, depth-psychological, and cognitive-scientific. Each approach illuminates important dimensions of esoteric traditions. What remains underdeveloped is a seventh approach: the...

DOI: 10.23668/psycharchives.22205 (opens in new tab) Mysticism Phenomenology philosophy Relation database Taxonomy biology +2

Kambo as Entheogenic Therapy: Processes of Physiological, Symbolic, and Transpersonal Healing

June 16, 2025 Michael Winkelman, Jan M. Keppel Hesselink

Entheogenic healing rituals have emerged recently decades in the Western world using a psychoactive secretion from a tree frog (Phyllomedusa bicolor) called Kambo. Kambo use originated as an Amazonian hunting ritual but became internationalized as a spiritual healing practice in a “vaccination” involving application of the frog secretion of a frog through the skin via a heat-induced blister....

DOI: 10.1163/9789004729759_018 (opens in new tab) Psychotherapist Transpersonal psychology Symbolic interactionism

Transformative Psychopharmacology: the Case of 5-Methoxy-N,N-Dimethyltryptamine

International Journal of Psychotherapy Practice and Research January 2, 2019 Jan M. Keppel Hesselink, Jan M. Keppel Hesselink

Since the 2nd part of last century neo-shamanic rituals using mind-altering extracts from plants or animals have become increasingly popular in Europe and the USA. The first rituals coming to the west were based on drinking a special Amazonian tea, Ayahuasca, based on 2 different plants, with active compounds belonging to the class of the beta-carbolines (harmala alkaloids) and tryptamines. The...

Transformative Psychopharmacology: the Case of 5-Methoxy-N,N-Dimethyltryptamine

International Journal of Psychotherapy Practice and Research January 2, 2019 Jan M. Keppel Hesselink, Jan M. Keppel Hesselink

Since the 2nd part of last century neo-shamanic rituals using mind-altering extracts from plants or animals have become increasingly popular in Europe and the USA. The first rituals coming to the west were based on drinking a special Amazonian tea, Ayahuasca, based on 2 different plants, with active compounds belonging to the class of the beta-carbolines (harmala alkaloids) and tryptamines. The...

Kambô: A Shamanic Medicine - Personal Testimonies

Juniper Online Journal of Case Studies September 7, 2018 Jan M. Keppel Hesselink 14 citations

Since the beginning of this century more and more people in Europe and USA make use of a shamanic product based on the secretion of an Amazonian frog, the Phyllomedusa bicolor.This secretion contains a great number of bio-active peptides and is administered in a ritual via a fresh burn created on the skin of forearm or leg.The desired effects are related to acute intoxication and consist...