"Practitioners use a technique similar to the laying on of hands in which they claim that they act as channels for Reiki energy — which they say flows through their palms to specific parts of the body in order to facilitate healing..... The existence of Reiki energy has not been scientifically proven, and thus the scientific community ascribes anecdotal evidence of the effectiveness of Reiki therapy to the placebo effect and a combination of post hoc reasoning and the regressive fallacy..... The predominant opinion among the scientific community is that the sensations felt by practitioners and patients of Reiki are psychologically subjective or the result of self-deceit." Includes information about Reiki's origin and history, theories and practices, non-traditional Reiki (Celtic Reiki, Reiki Tummo and Shakti Bija Mantra Reiki), and controversies including opposition from religious groups, internal controversies, secret teachings and the "Reiki Grandmaster". Wikipedia