“The Maha-Vishnu lies down in some part of the spiritual sky by His own free will. Thus He lies on the ocean of karana, from where He glances over His material nature, and the mahat-tattva is at once created. Thus electrified by the power of the Lord, the material nature at once creates innumerable universes, just as in due course a tree decorates itself with innumerable grown fruits.” (Shrila Prabhupada, Shrimad Bhagavatam, 1.3.2 Purport)