Dr. Nida Chenagtsang is a traditional Tibetan physician and lineage holder of the Yuthok Nyingthig, the unique Vajrayana Buddhist spiritual healing tradition of Tibetan Medicine. He has published several books and articles on Tibetan medicine, meditation, and yoga, and his extensive research and revival of ancient Tibetan healing methods has earned him great acclaim in both East and West. Dr. Nida is the Co-Founder and Medical Director of Sorig Khang International: Foundation for Traditional Tibetan Medicine (sorig.net) with branch centers in over forty countries worldwide; Co-Founder of the International Ngakmang Institute established to preserve and maintain the Rebkong non-monastic yogi/ini culture within modern Tibetan society; and Co-Founder and Medical and Spiritual Director of the Sorig Institute (www.soriginstute.org) and Pure Land Farms (www.purelandfarms.org), Centers for Tibetan Medicine, Meditation and Rejuvenation in Los Angeles, California. Robert Thurman is Professor of Indo-Tibetan Buddhist Studies at Columbia University as well as Co-Founder and President of Tibet House US/Menla in service of HH Dalai Lama & the people of Tibet. A close friend of the Dalai Lama's for over 50 years, he is a leading world-wide lecturer on Tibetan Buddhism, passionate activist for the plight of the Tibetan people, skilled translator of Buddhist texts, and inspiring writer of popular Buddhist books.