Reiki simply put is Universal Life Force Energy, directing energy that makes up the universe to the people, places or things where there is difference between the current form and the ideal form. If one is only able to accept a little change at a time, then healing will require much time. If one is able to accept lots of change the healing can be instantaneous. A Reiki treatment can benefit a client under any circumstances.

A Reiki treatment consists of a Reiki practitioner placing his or her hands near or on the client’s body having only the intent for the energy to flow.  The client remains clothed throughout the session. Reiki does not incorporate complicated rituals. Instead there is the simple exchange of energy between two people. The intent is to simply share healing. The practitioner desires to ease the burden of another and the willingness to receive. A full treatment lasts about one hour. 

Reiki is also known as a Japanese technique for healing, stress reduction, and relaxation. It is based on the belief that energy flows through living organisms. This unseen energy is typically referred to as "life force energy" or ki. Practitioners believe that ki is all around us and can be harnessed by the mind.

Many cultures, past and present have shared the belief in this unseen force and in the interconnectedness of all life. It is believed that one is more vulnerable to stress and illness when reserves of life energy are low.

Reiki practitioners believe that they can channel this energy to help their clients. Reiki heals by breaking up negative energy and replacing it with positive, healing energy, which passes through the hands of the practitioner. The hands of experienced Reiki practitioners are said to grow hot when giving a treatment.

Reiki is a simple technique to learn but it is not taught in the traditional sense. Rather, the ability to use reiki is transferred to the student by the Reiki Master. The ability to perform Reiki is not dependent on intellectual capacity or the state of one's spiritual development, making Reiki universally accessible. It has been taught to thousands of people of diverse backgrounds and ages throughout the world for many years.

As holistic medicine becomes increasingly popular, Reiki is being hailed as a treatment for helping body, mind, and spirit. This makes it very different from traditional allopathic medicine, which typically only addresses the disease itself.

The word Rei means "universal," or present everywhere. Research into the esoteric meaning of the word reveals that it is more accurately interpreted to mean "spiritual consciousness" or "supernatural knowledge." This "God-consciousness" is said to be all-knowing, able to see the root of all problems and then heal them.

Other names for ki include Chi, as the Chinese call it, Ti or Ki in Hawaiian, Prana in Sanskrit, orgone, bioplasma, and odic force. Various cultures that recognize its existence have given it many other names.

As long as something is alive, ki circulates through it and around it. When ki dies, the life force departs and the organism dies. Ki is also the source from which emotions, thoughts, and spiritual life are drawn.

The Chinese have studied ki, or as they call it, "chi," for thousands of years and place great importance on it. One of their classic tomes lists thirty-two different kinds of chi and is over 4,000 years old.

Ki is also used by practitioners of the martial arts for mental development and physical training. It is used in Pranayama (meditative breathing exercises) and by shamans in many cultures for divination, psychic awareness, and healing.

While Reiki is not a religion, it can be interpreted as a spiritually guided practice. Teachers therefore recommend that practitioners live in accordance with certain ethical ideals and do their best to promote peace and harmony in the world.