Reiki (pronounced ray-key) is a technique for stress reduction and relaxation of Japanese origin that promotes healing. The word 'Reiki' is a compound word of two parts - Rei, meaning Universal and Ki, meaning Life Force Energy. Hence, combined, we have Reiki - Universal Life Force Energy.
Rei can also mean 'supernatural force or spiritual intelligence'. Therefore, Reiki can also be understood as Spiritually Guided Life Force Energy.
Ki is found in all living things and in combination with Rei is self-guiding 'having an intelligence of its own'. Therefore, the Reiki practitioner is a channel for the flow of Reiki which guides itself to wherever it needs to go, whether to self or others.
As Reiki is not your own energy, it is never exhausted and neither is the Reiki practitioner when using it. Reiki has its origin from the Highest source and can never do harm. It flows once the practitioner intends it to flow for as long as the intention continues.
Reiki encourages and promotes healing of the physical, mental and spiritual aspects of the recipient bringing the emotional aspect into balance and harmony, allowing as a result, health, happiness and well-being. It can be used on plants and animals as well as ourselves.
It is important to point out that in Japan, Reiki is a spiritual practice that has as a component, a healing ability. The end to achieve, in Japan, for a Reiki practitioner, is 'Dai Anshin' or 'Anshin Ritsumei' which is a state of peace, knowing your life purpose.