The founder of the Usui System of Reiki, Dr. Mikao (Mikaomi) Usui, was not a monk, a Christian, or a medical doctor. He was a Japanese Zen Buddhist, a businessman, spiritualist, and scholar. Late in his life, he experienced a profound spiritual enlightenment after a period of fasting and meditation. Afterward, he began the process of developing the healing art of Reiki and opened a teaching clinic in Japan.