A personal adventure, a fascinating study of anthropology and ethnopharmacology, and, most important, a revolutionary look at how intelligence and consciousness come into being. This adventure in science and imagination, which the Medical Tribune said might herald "a Copernican revolution for the life sciences," leads the reader through unexplored jungles and uncharted aspects of mind to the heart of knowledge. In a first-person narrative of scientific discovery that opens new perspectives on biology, anthropology, and the limits of rationalism, The Cosmic Serpent reveals how startlingly different the world around us appears when we open our minds to it. "The Cosmic Serpent is a spellbinding, scholarly tour de force that may presage a major paradigm shift in the Western view of reality." --Michael Harner, Ph.D., president, Foundation for Shamanic Studies, and author of The Way of the Shaman