Reiki (霊気) is a spiritual practice developed in 1922 by Japanese Buddhist Mikao Usui, which has since been adapted by various teachers of varying traditions. It uses a technique commonly called palm healing or hands on healing as a form of alternative medicine and is sometimes classified as oriental medicine by some professional medical bodies. Through the use of this technique, practitioners believe that they are transferring universal energy (i.e., reiki) in the form of qi (Japanese: ki) through the palms, which allows for self-healing and a state of equilibrium.

Reiki treatment involves the practitioner’s hands being held on or near a specific part of the body for a varying length of time. Recent injuries are usually treated in this way, with the site of injury being targeted. There is great variation in the duration of such treatments, though 20 minutes is typical. Takata described “localised treatment” as ‘hands-on work,’ compared to distant or “absent healing.”