Tami Simon speaks with Stanislav Grof. For more than half of a century, Stan has been a pioneer in the research of non-ordinary states of consciousness. He is the author of many books including Realms of the Human Unconscious, Beyond the Brain, and most recently Holotropic Breathwork: A New Approach to Self-Exploration and Therapy. With Sounds True, Stan wrote the book When the Impossible Happens: Adventures in Non-Ordinary Realities, and the audio learning program The Transpersonal Vision. Stan discusses the lessons that can be learned from non-ordinary states, the idea of a consciousness independent of the brain, and the uses and goals of holotropic breath work. (67 minutes)