Srimad Bhagavad Gita -Ramanujacharya 268

Srimad Bhagavad Gita -Ramanujacharya

Chapter-8 Tāraka Brahma Yogaḥ

avyaktād-vyaktayaḥ sarvāḥ prabhavanty-ahar-āgame | ratry-āgame pralīyante tatraivāvyakta saṃjñake || 18 || 18. All the manifested entities come forth from the unmanifest (Avyakta) at the coming of the day of Brahma, at the coming of the night they are dissolved into that alone which is known as the Unmanifest. Commentary Thus, at the dawn of a ‘day of Brahma’, all the entities existing in all the three realms [physical, astral and transcendental], possessing physical manifestations, senses, objects and places of enjoyment, appear from the Unmanifest state (Avyakta), which is the ontological condition of Brahma at that time, and at the beginning of the night they are dissolved back into the condition of the Unmanifest.