Energetic bodywork works on a far deeper level and employs wisdom and techniques of the ancient masters to improve the energy (Qi, pronounced Chi) circulation within the body, to specifically direct Qi and to replenish Qi. Qi is the basic energy of which all matter, from sub-atomic particles up, space, time and other dimensions we cannot grasp are composed. We, and everything around us are composed of coalesced Qi and it is said that where Qi flows, essence (blood, breath) follows.
Usui Shiki Ryoho Reiki:
Reiki is a laying-on of hands, touch healing process in which the practitioner is a conduit for Qi from the Cosmos (Ki in Japanese) to be channeled to the patient.
This method was lost for millennia, rediscovered by Buddha Gautama Siddhartha and then discarded as a distraction from the quest for enlightenment. Makio Usui was, by some accounts a Christian Minister in Japan, but it is known he was, at least later, a Buddhist Monk. In the mid nineteenth century he began a quest to learn the healing methods of the Buddha and Christ. After travelling in India and learning to read Sanskrit, he then uncovered basic, cryptic instruction from ancient manuscripts. On the twenty first day of fasting and meditating on Mt. Koriyama he was endowed with the full knowledge of the system he called Reiki.
In 1935, an American woman, Hawayo Takata travelled to Japan to the clinic of Chujiro Hayashi, the successor of Mikao Usui, for healling of multiple health problems. After her healing, initially Hayashi refused to train Takata, as she was a foreigner. Later, as Hayashi had forseen the coming events of World War II, she was named his successor, for he new that Reiki would otherwise be lost in Japan after the War.
Hawayo Takata brought Reiki to the United States and her teachings are the foundation of Usui Shiki Ryoho Reiki. My personal instruction was, and is still a mix if the traditional and some more modern interpretations, though my practice falls toward the older traditions.