As the medical profession is looking into new methods of wellness and healing, increased interest in “complementary” methods has been expanding in recent years. A component of the National Institute of Health, The National Center for Complementary and Alternative Medicine (NCCAM) currently lists Reiki as an "Energy Therapy." It is offered in many health care settings as an adjunct to medical treatments. Reiki is found to be effective in enhancing deep relaxation, and has been shown to promote an improved healing response. It is also often offered for palliative care to provide comfort measures for serious medical conditions. There has been a recent study that estimates over six million U.S. adults have received one or more Reiki treatments and that number is growing exponentially. Currently in the US about 10-15% of medical facilities offer Reiki Services as a complementary medicine modality to some or all of their clients.

Reiki practitioners receive placements (attunements) or in the advanced classes ignitions, which raise and accelerate their energy flow. The practitioner provides Reiki sessions by the gentle act of allowing energy to flow out through their hands.

Reiki works on elevating the energy level of a person, place, animal, plant etc. Usually after a treatment, a person will feel relaxed sometimes energized and at peace. Reiki energy is always positive, it can never no harm.