Here Grof presents a useful model of the psyche—a model extended by his thirty years of studying non-ordinary states of consciousness. It is useful for understanding such phenomena as shamanism, mysticism, psychedelic states, spontaneous visionary experiences, and psychotic episodes. The model is also useful in explaining the dynamics of experiential psychotherapies and a variety of sociopolitical manifestations such as war and revolution.
This book might have been entitled Beyond Drugs. The second part describes the principles and process of the non-pharmacological technique developed by the author and his wife, Christina, for self-exploration and for psychotherapy. Grof explores in detail the components of this technique. He describes its method, its effective mechanisms, as well as its goals and potential. Its practice is simple, since it utilizes the natural healing capacity of the psyche.

Stanislav Grof, MD, is a psychiatrist with more than fifty years of experience in research of non-ordinary states of consciousness. He has been Principal Investigator in a psychedelic research program at the Psychiatric Research Institute in Prague, Czechoslovakia; Chief of Psychiatric Research at the Maryland Psychiatric Research Center; Assistant Professor of Psychiatry at the Johns Hopkins University; and Scholar-in-Residence at the Esalen Institute. He is currently Professor of Psychology at the California Institute of Integral Studies, conducts professional training programs in holotropic breathwork, and gives lectures and seminars worldwide. He is one of the founders and chief theoreticians of transpersonal psychology and the founding president of the International Transpersonal Association (ITA). In 2007, he was granted the prestigious Vision 97 award from the Vaclav and Dagmar Havel Foundation in Prague. He is the author and editor of many books, including Ancient Wisdom and Modern Science; Beyond the Brain: Birth, Death, and Transcendence in Psychotherapy; The Cosmic Game: Explorations of the Frontiers of Human Consciousness; Human Survival and Consciousness Evolution; and Psychology of the Future: Lessons from Modern Consciousness Research; all published by SUNY Press.