— consisting of the prāṇa and apāna (breaths); — the vital breath; — respectively; — in sleep and waking; — whose nature is the juncture (cessation) of those two; — called samāna; — in deep sleep; — as at the equinoxes
The vital breath consisting of prāṇa and apāna (operates) respectively in waking and sleep; that whose nature is the juncture of those two, called samāna, (operates) in deep sleep, as (the sun) at the equinoxes.