I am a USUI Reiki Master Teacher. Reiki is a gentle healing art that uses the Universal Life Force ("Rei" means higher power. "Ki" means life force energy in Japanese. It's called "Chi" in China, and "prana" in India) to assist the state of relaxation and release of stagnant or blocked energy, stress and tension, so the body can come into balance. The energy flows through the practitioner, not from him or her. The closest to a scientific explanation that I can come up with is that when one is attuned to Reiki, they can channel and concentrate the flow of electromagnetic energy through their hands, and also telekinetically. (Remember, most people only use 10% or less of the true power of their mind)
Although I am currently not offering hands-on Reiki sessions, I often use distance Reiki and other energy healing methods as part of my coaching practice to help you find your center of balance and accelerate your personal healing process. When the Reiki energy flows through me, I am often able to intuitively "see" and "feel" patterns of energy that correspond to emotional blocks as well as physical problems and their causes which can provide helpful information to assist your healing on all levels.
If you are looking for a Reiki practitioner for hands-on work in the Phoenix area, I know several awesome people I can refer you to...