Glimpses of the birth of the universe from the James Webb telescope. Of cosmic dawn the birth of the universe 13.5 billion years ago. In the Bhagavad Gita it is said of Brahma's day and night, of the evolution and involution of the whole universe-
They who know the true measure of day and night, know the day of Brahma, which ends in a thousand yugas, and the night which also ends in a thousand yugas. At the approach of Brahma's day, all manifestations proceed from the unmanifested state. At the approach of night they merge verily into that alone, which is called the unmanifested. (chapter 8.18)