Smoke, night, the dark fortnight, the six months of the southern course — the yogi who reaches the lunar light returns.

The path of darkness (dhūma-ādi-mārga): dhūmaḥ (smoke) → rātriḥ (night) → kṛṣṇaḥ (dark fortnight) → ṣaṇ-māsā dakṣiṇāyanam (six months of the southern sun).

Lunar light (cāndramasaṃ jyotiḥ) as final stage. The yogī who goes by this path prāpya nivartate — reaches and returns, reincarnates. It is pitṛ-yāna, “path of the ancestors,” which leads to temporary celestial worlds and then return.