'A brilliant and groundbreaking exploration of the promises and pitfalls of the spiritual path written by one of the pioneers of transpersonal psychology. A must for every serious spiritual seeker, students of consciousness, and all those concerned about the future of our planet." -Stanislav Grof, M.D. 'Regardless of one's religious preferences, this pioneering classic eloquently and objectively addressees the spiritual issues of our time." -Angeles Arrien 'Here, presented with clarity and courage, are the foundations for a transpersonal psychotherapy the respects the multileveled richness of the human psyche." -Ram Dass