Martial arts emphasized the accumulation, operation, and use of internal strength in the body ever since ancient times. The so-called meridians, lower belly internal breathing method, big circulatory cycle, and small circulatory cycle were all based on this theory.

The overall logic of Reiki was similar to internal strength. The most obvious difference was that in addition to its accumulation, operation, and use, Reiki could also be released externally.

No matter how strong a person’s internal