Naked Reiki is a way to experience and express the life energy in a natural and wholesome way. The natural state of the human being is naked and the sensitive sensory systems of the skin, particularly the Pacinian corpuscles and the Meissner corpuscles, revive their sensitivity when clothing is removed. These sensitive receptors are over-stimulated by the wearing of clothing. When they are over-stimulated they adapt, or shut down, kind of like being blinded by too bright a light.
Removing clothing covering the skin surface allows these very sensitive receptors to re-awaken and the sensations of the life energy are experienced by the individual in a more focused way. Often while practicing Reiki a client will state that the practitioners hands feel warm, even hot. The truth is not that the practitioners hands change temperature, it is that the skin surface of the client begins to sense what the energy flowing through them actually feels like. The naked body is far more sensitive to these subtle experiences.
Reiki is the life energy generated by your body, nothing more and nothing less. It is not accessed outside of us, in the universe or from another person, we manufacture this energy and it is expressed as life, behavior, language, intelligence, creativity. If you are blocking this energy you are missing out on a lot of living. The practice of Reiki helps you to be more aware of this energy, and the practice of Naked Reiki can enhance the possibility that you can feel your own and the emanations of another person's energy.