"in the Bhagavad Gita. One stanza reads: "Offering the inhaling breath into the exhaling breath and offering the exhaling breath into the inhaling breath, the yogi neutralizes both breaths; thus he releases prana from the heart and brings life force under his control."2 The interpretation is: "The yogi arrests decay in the body by securing an additional supply of prana (life force) through quieting the action of the lungs and heart; he also arrests mutations of growth in the body by control of apana (eliminating current). Thus neutralizing decay and growth, the yogi learns life-force control." Another Gita stanza states: "That meditation-expert (muni) becomes eternally free who, seeking the Supreme Goal, is able to withdraw from external phenomena by fixing his gaze within the mid-spot of the eyebrows and by neutralizing the even currents of prana and apana [that flow] within the nostrils and lungs; and to control his sensory mind and intellect; and to banish desire, fear, and anger."3"