Then (1954), The Doors of Perception
Drug-Induced Mystical Experience vs. 'Spontaneous' Mystical Experience: Is There a Difference?
Huxley consistently maintained that the mescaline experience was qualitatively identical to what the great mystics described, not merely similar or analogous. He acknowledged it was 'gratuitous' (unearned) but insisted the experience itself was the same. This was contested: Zen teachers (including D.T. Suzuki, whom Huxley knew) argued the drug experience was 'too easy' and fundamentally different from enlightenment.
contested
Walter Pahnke's Good Friday Experiment (1962; reported in his 1963 dissertation and a 1966 paper) tested whether psilocybin could produce 'genuine' mystical experience. Pahnke reported that most psilocybin subjects, and few controls, met his mystical-experience criteria, though a 1991 follow-up (Doblin, Journal of Transpersonal Psychology) found problems with the original reporting, including an underreported difficult experience. However, phenomenological identity does not establish equivalence in terms of lasting transformation. A 2019 Johns Hopkins online survey (Griffiths et al., PLoS One) compared self-reported 'God encounter' experiences that happened without drugs with those that followed psilocybin, LSD, ayahuasca or DMT, and found many shared features along with some differences. It compared groups of self-selected respondents, not the same people across both kinds of experience. The debate is genuinely unresolved: the experiences as described share many features; whether the transformation produced is the same remains unknown.
Sources
- Pahnke, International Journal of Parapsychology (1966)
- Griffiths et al., PLoS One (2019)
- Doblin, Journal of Transpersonal Psychology (1991)