The book is a guide to the safe and ethical application of extended states of consciousness for therapists, healers and researchers. Entheogens are becoming more and more popular. And this is not surprising: even though we have access to the latest medical and technological advances, we are not getting healthier, happier or more meaningful. Psilocybin mushrooms, ayahuasca and LSD, as well as other time-tested techniques that can change consciousness, such as drumming, meditation and vision seeking, are now recognized as powerful catalysts for change and healing. But how can we know we are using them effectively? Burz's more than three decades of experience, skillful and sincere approach shapes the therapeutic applications of extended conditions without detaching them from their traditional contexts. The medicine of consciousness provides a consistent map for navigating unusual states of consciousness, offering invaluable contributions to the field of healing and transformation.