The technique combines nauli (abdominal contraction) with a downward movement of apāna vāyu. The air presses the colon from within, facilitating elimination.

The “place of the yoni” (yonisthāna) refers to the pelvic/root region of the body. Moving the navel toward it implies a deep abdominal contraction that compresses the lower organs.

This is a self-massage technique for the intestines that tones the abdominal muscles and stimulates peristalsis.