COSMIC DISSOLUTION (MAHAPRALAYA)
How was the universe created? It was automatic. There are innumerable universes which are interlaced with one another; one universe creates another in a chain reaction. These universes are so numerous that even Sadgurus cannot count them.
No Sadguru was ever successful in this counting, since the flow of direct knowledge is from the Sadguru himself. If this flow is stopped to count the universes, duality is affected. The Sadguru's life is put in danger by duality's reaction."
These universes come out of the Sadguru and merge back into him after aeons. This is called the mahapralaya. When the universes disappear in Mahapralaya, they are no longer in gross form, but they remain within the universal mind. Every individual gross mind rests in the universal mind. Though this is all an illusion, still the individual souls of all beings that inhabit the universes remain within the universal mind. And after aeons the evolution starts again and every jeevatma (incarnate soul) gradually takes form in accordance with the consciousness he had before the cosmic event of Mahapralaya occurred.
For example, in deep sleep you are unconscious of both your body and the world. For you this is dissolution or pralaya. When you awaken, creation begins again for you. You come back and the world is again existent to you. This is individual dissolution, but the Mahapralaya happens universally. It is the same as individual dissolution only all universes dissolve, so it is called mahapralaya – maha meaning great. Briefly, this happens every day in an individual's sound sleep state, and after ages and ages it happens universally. For this reason, it is said in the Koran, "On doomsday, everyone will rise up from his grave.”
(Lord Meher, 1st. ed., Bhau Kalchuri, Vol. 3, pp. 988 – 989)