Da Outer World (Astral, Spiritual World) - is the "place" where even extended cosmology doesn't exist itself. The place of God's existence where he prevents annihilation of everything by the void of Inane.
However, it should not be understood, as it the ultimate end. It actually contains different cosmologies, so it is actually impossible to even predict it. This version is just the vision of our cosmology.
Da Outer World can destroy Him and lock The All Time in the Voidance for more than infinity years. Da Outer World can be so much bigger than the Hyper Dream. It contains: The Great Barrier, Inane, Hyper Dream, All Time, Great Sepration, etc.