In the simplest explanation, Reiki is the laying on of hands. Coming from the Japanese words Rei (spirit guided) and Ki (universal life force energy), Reiki is a natural method of hands-on holistic healing (relating to, or concerning the whole body and mind) where energy is brought into a practitioner and then passed into someone in need for the sole purpose of healing. Although passed into the body's seven major energy centers, chakras (pronounced shock-rahs), the healing energy of Reiki goes where it is needed most. This is not healing through massage or any type of physical therapy, but guided positive universal love energy, which overcomes negative energies built up by problems that have developed in the body either by physical or emotional issues.
All problems in the body, whether they be illnesses or injuries, are centered around negative energy. Reiki overcomes the negative energies with positive energy, in most cases making the person feel better, and in some cases removing the problem completely. Reiki has been known to reduce and alleviate pain, discomfort, or disease of any kind, and has been used on all major diseases.
Reiki is hands-on healing and a nice pleasant experience.