Featuring a wealth of new translations, superb studies, and reflections on the transmission of tantric Buddhism to the West, As Long as Space Endures is a collection for both scholar and practitioner to enjoy. �From the foreword by Robert A.F. Thurman to Lama Zopa’s prayer for the swift return of Kirti Tsenshab Rinpoche, the volume well reflects many interests of the Dalai Lama in the context of the Kālacakra system. �As the Kālacakra is the most complex and comprehensive tantric system, As Long as Space Endures includes material on esoteric physiology, medicine and astrology, and its relationship to other Highest Yoga Tantra systems. �It includes chapters from luminaries such as Giacomella Orofino, David Gray, Vesna Wallace, Miranda Shaw, and Thupten Jinpa as well as contemporary Tibetan masters Jhado Tulku Rinpoche and Geshe Drakpa Gelek. �This volume will make an excellent resource for the study of the transnational transmission of Buddhism, tantric theory and practice, the Jonang tradition, the historical development of Tibetan Buddhism, and the relation of biomedical sciences to Vajrayāna practice.