Reiki is a Buddhist practice that is approximately 2,500 years old. The name "Reiki" is derived from two Japanese words: rei meaning universal spirit and ki meaning life energy. Mention of Reiki can be found in the Tibetan sutras and in ancient records of cosmology and philosophy. Hichau Mikao Usui, a Japanese physician and Buddhist monk, revitalized the practice of Reiki in the 19th century.
