prayatnas tālvādikaraṇavyāpārastenābhihataḥ preritaḥ koṣṭhabhavo vāyurnābhipradeśādutthita urasi vistīrṇaḥ kaṇṭhe vartito mūrddhānamāhatya vaktre saṇcarannirgacchati
The effort is the operation of organs like the palate; impelled by this [effort], the air residing in the body rises from the navel region, spreads in the chest, revolves in the throat, strikes the head, moves through the mouth, and emerges.