For the past 35 years he has been conducting research on: the therapeutic and heuristic aspects of non-ordinary states of consciousness; the use of psychedelics and non-drug techniques in experiential psychotherapy; alternative approaches to psychoses; spiritual emergency and treatment of transpersonal crises; the implications for psychiatric theory and the emerging scientific paradigm of recent developments in quantum physics, information and systems theory, biology, brain research, and consciousness studies. Among his books are Realms of Human Consciousness (1976), Beyond the Brain (1988), and The Holotropic Mind (1992).

Ами какво да ти кажа, аз тия неща ги мога по-добре от него и още доста други неща.