A unique sitting form called the Okada Sitting Method (OSM) was created in the Meiji period. It is practiced by sitting on one's heels when sitting on the ground, like Seiza. Although it is a seemingly painful form, it was popularized as a therapy for healing the body and mind in the Taisy6 period. OSM was a body technique that made full use of the laws of motion like a balancing toy. Namely, it puts one's weight straight down to the Earth and enhances the movement flying towards heaven through the physical law of the reaction to it. Practitioners had a sense that this Rebound Movement was exerted beyond the scale of self by gravity that works between heaven and Earth. They also felt that this movement was derived from the upward and downward motion of the heat beat by breathing; thus, they felt as though they could wholly reconcile themselves with the universe. Moreover, they could obtain, as an integrated movement, a sense of flying, euphoria, and stability or composure, which were the two measured elements for deep satisfaction of body and mind. OSM gave practitioners deep healing in both body and mind.