tri-lokyÄ yuga-sÄhasraá¹
bahir Äbrahmaṇo dinam
tÄvaty eva niÅ›Ä tÄta
yan nimīlati viśva-sṛk
tri-lokyÄḥ - of the three worlds; yuga - the four yugas; sÄhasram - one thousand; bahiḥ - outside of; Äbrahmaṇaḥ - up to Brahmaloka; dinam - is a day; tÄvatÄ« - a similar (period); eva - certainly; niÅ›Ä - is night; tÄta - O dear one; yat - because; nimÄ«lati - goes to sleep; viÅ›va-sá¹›k - BrahmÄ.
When BrahmÄ goes to sleep in his nighttime, the three planetary systems below Brahmaloka are all submerged in the water of devastation. In his sleeping condition, BrahmÄ dreams about the GarbhodakaÅ›ÄyÄ« Viṣṇu and takes instruction from the Lord for the rehabilitation of the devastated area of space.