Roland Griffiths: The Mystical Experience and Why It Matters for Medicine

About This Video

This recording of Roland Griffiths presenting at a MAPS conference is essential viewing for anyone trying to understand why psilocybin works the way it does. Griffiths, who led the Hopkins psilocybin program from its restart in the early 2000s until his death in 2023, makes the case for the mystical experience as a genuine and measurable psychological phenomenon — not merely a subjective feeling — that predicts therapeutic outcomes across multiple conditions. He walks through the Mystical Experience Questionnaire (MEQ) and the decades of research showing that high-scorers on measures of unity, sacredness, noetic quality, and transcendence of time and space consistently show better outcomes in depression, addiction, and end-of-life anxiety trials. The clinical implications are substantial: if the mystical experience is therapeutic, then session design should optimize for it, not try to minimize the subjective experience as a side effect.