"Rei" refers to a "higher power" and "ki" refers to "life-force energy". Usui Reiki was founded by Dr. Mikao Usui, a Japanese Buddhist, in 1931. Reiki is simple, safe, and natural. It has been used to foster healing of virtually every illness and disease.
When the body is fully relaxed, its natural healing powers are triggered and the body can more easily maintain or improve health. Reiki treats the mind, body, and spirit, and is administered by the "laying of hands" on specific parts of the body. A trained Reiki practitioneer, who has received an "attunement", acts as a conduit for the higher healing powers.