This exercise promotes toning of the kidneys and lungs as well as a kind of massage of the internal organs as the waist turns. The shifting weight of the body also sends a massage to the soles of the feet stimulating the kidney point 42 that is situated between the large toe, ball of the foot and the edge of the foot. This point is called “The Bubbling Brook.”

Pauline Oliveros, Deep Listening, loc. 131