Reiki is an energy healing system developed in the early 20th century by Mikao Usui. Reiki is based on the practitioner's ability to draw into themselves external naturally occurring electromagnetic energy at variable frequencies and emit a coherent electromagnetic field from their hands for healing.
Reiki was developed by Mikao Usui after his satori (japanese: enlightenment) at a temple on Mt Kurama following a 21 day fasting retreat. The concept of drawing external energy directly came to Mikao Usui and he applied this to his Ki Ko [see notes] teaching, which developed over time into his Reiki method that we know today.
Reiki is a direct healing method and the practitioner applies the energy at the area that is damaged or diseased or simply needs healing. Reiki can be used as a passive healing method, where the practitioner is a channel for the energy and does nothing to promote healing or an active method (click here to read about my Active Reiki Method) where the practitioner takes an active role in the healing process and does everything possible to maximise the healing effects of the Reiki treatment.
Notes:
Ki Ko is the Japanese name for Qi Gong. One of the aspects of Ki Ko is healing. The practitioner can project healing energy from their hands. Ki Ko requires much practice over a lengthy period of time for the practitioner to be able to project Ki (energy).