akṣarabrahmayoga - Verse śloka 25
śloka 25
dhūmo rātristathā kṛṣṇaḥ ṣaṇmāsā dakṣiṇāyanam |
tatra cāndramasaṃ jyotiryogī prāpya nivartate ||8-25||
Translation
By the path of smoke, night, the dark fortnight, and the six months of the southern course, the Yogi attains the lunar light and returns to the world.