The Kalachakra, or "wheel of time," tantra likely entered Indian Mahayana Buddhism around the tenth century. In expounding the root tantra, the Indian master Pundarika, one of the legendary Kalki kings of the land of Shambhala, wrote his influential Stainless Light. Ornament of Stainless Light is an authoritative Tibetan exposition of this important text, composed in the fifteenth century by Khedrup Norsang Gyatso, tutor to the Second Dalai Lama.
One of the central projects of Kalachakra literature is a detailed correlation between the human body and the external universe. In working out this complex correspondence, the Kalachakra texts present an amazingly detailed theory of cosmology and astronomy, especially about the movements of the various celestial bodies. The Kalachakra tantra is also a highly complex system of Buddhist theory and practice that employs vital bodily energies, deep meditative mental states, and a penetrative focus on subtle points within the body's key energy conduits known as channels. Ornament of Stainless Light addresses all these topics, elaborating on the external universe, the inner world of the individual, the Kalachakra initiation rites, and the tantric stages of generation and completion, all in a highly readable English translation.

The first published work of the new Library of Tibetan Classics series, initiated and coordinated by renowned translator Geshe Thupten Jinpa, is Ornament of Stainless Light by Khedrup Norsang Gyatso (d. 1513), a commentary on the Kalachakra root text, the Vimalaprabha. His Holiness the Dalai Lama himself selected this text for inclusion in the Library of Tibetan Classics series. Gavin Kilty's translation is scholarly and practical, his lucid introduction demonstrating his excellent grasp of the subject matter. Whether you are a Kalachakra practitioner, a student of Tibetan Buddhism, or interested in science from a new angle, this book is worthy of study.

Ornament of Stainless Light: An Exposition of the Kalachakra Tantra, Khedrup Norsang Gyatso / Gavin Kilty, tr., Wisdom Publications, Hardcover, 2004, 672 pp., $59.95

Khedrup Norsang Gyatso (1423-1513), a well-known scholar and adept of the fifteenth century, was a student of the First Dalai Lama and a principal teacher of the Second Dalai Lama. Though belonging to the Geluk school of Tibetan Buddhism, Norsang Gyatso is recognized as a seminal figure in the promotion of a syncretic approach�between the Geluk and Kagyu schools--to the teachings and practices of mahamudra. Along with Phukpa Lhundrup Gyatso, Norsang Gyatso is credited also with the founding of the highly influential Phuk school of Tibetan astronomy and astrology. Because of his dedication to intensive meditative practice for more than four decades as a wandering hermit, Norsang Gyatso came to be revered by the Tibetan tradition as a great meditator and teacher, and he is included among the lineage masters of many important practice traditions, including the lineage of Kalachakra.

Gavin Kilty has been a full-time translator for the Institute of Tibetan Classics since 2001. Before that he lived in Dharamsala, India, for fourteen years, where he spent eight years training in the traditional Geluk monastic curriculum through the medium of class and debate at the Institute of Buddhist Dialectics. He also teaches Tibetan language courses in India, Nepal, and elsewhere, and is a translation reviewer for the organization 84000, Translating the Words of the Buddha.