A TURNING POINT IN PSYCHOLOGY AND HUMAN HISTORY. An exceptionally clear and readable introduction to the evolving psychology of the spirit, transpersonal psychology, that is one of the most exciting developments of our times. Grof is far and away one of the leading scientists exploring this field and this book makes his work accessible to all." -- CHARLES T. TART, PH.D., author of Waking Up Grof marshals an impressive array of data and speculation in support of the timely demand that Western science acknowledge consciousness and its many non-ordinary states." -- RAM DASS If you want to know about the psychology of the future today, read this book. It is about a revolution in our understanding of the mind that is as farreaching in psychology as the idea of the quantum was to physics." -- FRED ALAN WOLF, PH.D., author of Taking the Quantum Leap STANISLAV GROF, M.D., formerly a professor at Johns Hopkins University School of Medicine and founder of the International Transpersonal Association, has written many books, including Realms of the Human Unconscious. HAL ZINA BENNETT, PH.D., is a psychologist and professional writer with more than' twenty-five books to his credit, including Follow Your Bliss, The Well Body Book, and Zuni Fetishes.