Reiki Reiki is one of the most ancient healing methods known to mankind. Reiki pronounced "RAY-key," is an ancient Japanese healing therapy. The National Center for Complementary & Alternative Medicine at The National Institutes of Health classifies Reiki as "biofield therapy" or "energy medicine."Reiki is one of the fastest growing therapies in the world because of its accelerated results, documented in many research studies." Reiki is deeply relaxing & rejuvenating. Reiki balances the energies in your body and promotes the body's own healing capabilities to balance your health, relax, relieve stress, restore energy, wellness, & quality of life. One hour of Reiki is equal to 3 or 4 hours of relaxing sleep.