Hath Yoga means the meeting of the vital air (Pran) and Apan.
Ha (-the sun), and tha (-the moon), when combined become Hatha, which means meeting of the sun and the moon.This meeting takes place in the navel.
Through Mulbandh the breath is carried into the navel, which brings about the meeting of Pran and Apan, resulting in the end of disequilibrium. It is disequilibrium that is physical and mental ailment as well as sinfulness. It is equilibrium that is health and religion.
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