Reiki is a Japanese technique for stress reduction and relaxation that also promotes healing.
It falls under the Energy Healing modality and is administered by "laying on hands" physically or above the body in touch with your Energetic field.

Our "life force energy" flows through us and is what causes us to be alive. If one's "life force energy" is low, then we are more likely to get sick or feel stress, and if it is high, we are more capable of being happy and healthy.

The word Reiki is made of two Japanese words - Rei which means " The Higher Power" or simply Spiritual, and as such is the hidden Force that Guides the Ki.
Ki which is "life force energy", spirit, soul, heart, intention.
So Reiki is actually "spiritually guided life force energy."

A treatment feels like a wonderful glowing radiance that flows through and around you. Reiki treats the whole person including body, emotions, mind and spirit creating many beneficial effects that include relaxation and feelings of peace, security and well being. Many have reported miraculous results.

Reiki is a simple, natural and safe method of spiritual healing and self-improvement that everyone can use. It has been effective in helping virtually every known illness and malady and always creates a beneficial effect. It also works in conjunction with all other medical or therapeutic techniques to relieve side effects and promote recovery.

Dr Mikao Usui, the founder of the Reiki system of natural healing, recommended that one practice certain simple ethical ideals to promote peace and harmony, which are nearly universal across all cultures.