Daniel is Director of The Centre for Integrative Psychotherapy, Newton, MA and Associate Clinical Professor of Psychology, Harvard Medical School. Author of 14 books including "Transformations of Consciousness" (with Ken Wilbur and Jack Engler), and a book on Mahamudra, "Pointing Out the Great Way: The Mahamudra Tradition of Tibetan Meditation-Stages" and two books on public dialogues with H.H. The Dalai Lama. He studied meditation practice for 38 years, including Patnajali's Yogasutras with Mircea Eliade; Burmese mindfulness meditation with Mahasi Sayadaw; Indo-Tibetan concentration and insight meditation with Geshe Wangyal, Denmo Locho Rinpoche, and Yeshe Tapkay; the Mahamudra from numerous Tibetan lamas. He spent 10 years translating meditation texts from Tibetan and Sanskrit. He has taught meditation retreats for 18 years.