|Chapter 8, Verse 18|

अव्यक्ताद्व्यक्तयः सर्वाः प्रभवन्त्यहरागमे।

रात्र्यागमे प्रलीयन्ते तत्रैवाव्यक्तसंज्ञके।।8.18।।

ॐ

Transliteration / Meaning

avyaktād vyaktayaḥ sarvāḥ prabhavantyahar-āgame
rātryāgame pralīyante tatraivāvyakta-sanjñake

Translation

At the beginning of Brahma's day, all living entities become manifest from the unmanifest state, and thereafter, when the night falls, they are merged into the unmanifest again.