Sarah Harding is a lama within the Shangpa Kagyu lineage of Tibetan Buddhism. After becoming a student of H.E. Kalu Rinpoche in 1972, she completed the first traditional three-year retreat for westerners under his guidance in 1980. Sarah has been a faculty member at Naropa University in Boulder since 1992 and recently retired to work on textual translation and research as a fellow of the Tsadra Foundation. Her publications include Creation and Completion, Machik’s Complete Explanation, The Life and Revelations of Pema Lingpa, The Treasury of Knowledge: Esoteric Instructions, The Treasury of Precious Instructions: Chöd, and Nigma, Lady of Illusion.