BG 8.18
अव्यक्ताद्व्यक्तयः सर्वाः प्रभवन्त्यहरागमे ।
रात्र्यागमे प्रलीयन्ते तत्रैवाव्यक्तसञ्ज्ञके ॥
रात्र्यागमे प्रलीयन्ते तत्रैवाव्यक्तसञ्ज्ञके ॥
avyaktād vyaktayaḥ sarvāḥ prabhavanty ahar-āgame
rātry-āgame pralīyante tatraivāvyakta-sañjñake
rātry-āgame pralīyante tatraivāvyakta-sañjñake
Word-for-word meanings
ahaḥ-āgame — at the beginning of the day [of Brahmā]; sarvāḥ — all; vyaktayaḥ — manifested beings; prabhavanti — emanate; avyaktāt — from the unmanifest; rātri-āgame — [and] at the approach of his night; pralīyante — they merge [again]; tatra eva — into that alone; sañjñake — which is known as; avyakta — the unmanifest.
Translation
At the advent of Brahmā’s day, all manifested beings emanate from the unmanifest, and at the approach of his night, they again merge into that alone which is known as the unmanifest.