Reiki is an Eastern practice that uses life force energy to promote relaxation and healing. It works by transferring unseen energy from the practitioner's hands to the recipient to relieve stress and balance the recipient's energy. The word Reiki comes from Japanese words meaning spiritually guided life force energy. Reiki can help with pain relief, emotional release, physical healing, and reducing stress. It originated over 3,000 years ago in ancient Tibet but was rediscovered and developed in the early 20th century by a Japanese Buddhist named Mikao Usui.