Skip to content

Jan M. Keppel Hesselink

4 papers in the library · publishing 2019-2026

Papers

Sort Most recent Most cited

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...

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....

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...