"Psyche Unbound is an extraordinary compilation of twenty-two essays that honor the pathbreaking lifework of Stanislav Grof, the world's leading researcher in psychedelic therapy, breathwork, and the exploration of non-ordinary states of consciousness. Over the past half century, Grof has conducted thousands of LSD-assisted psychotherapy sessions, developed unique frameworks for supporting and understanding mental health, and ultimately created a new, expansive cartography of the mind that welcomes spiritual experience with openness, rigor, and reverence. In honor of Grof's 90th birthday, this seminal collection of essays ranges from Joseph Campbell's and Huston Smith's remarkable assessments in the early 1970s as they first encountered and recognized the significance of Grof's discoveries, to current reflections by psychiatrists and researchers participating in today's renaissance of psychedelic therapy. In between are major essays that forward Grof's work on numerous theoretical and therapeutic fronts: implications for social and cultural change, transpersonal sexual experiences, the perinatal dimensions of Jean-Paul Sartre's 1935 mescaline experience, comparative studies with Asian religious systems, and illuminating parallels with the philosophical views of Alfred North Whitehead and William James, as well as discoveries in quantum and relativistic physics. Edited by Richard Tarnas and Sean Kelly, Psyche Unbound is an homage to one of the greatest clinicians in history and his powerful legacy of healing the soul and evolving human consciousness"--