What keeps mind and body connected? What keeps the mind always active? What gives the mind its vigor to create imaginations, to create thoughts, and not only to create them but to retain them by the faculty we call memory; to keep the knowledge gained by the faculty we call reason; to possess emotions which can sometimes be felt and sometimes not felt? Where does the mind keep all these things? What force can it be that is behind them all? Is it not the breath? That is why the mystic studies and realizes and masters the breath, in order to master not only the physical body but also the mind.