Apotheosium

The Apotheosium is An's personal home demiplane. Before The Sealing, it was connected to a doorway in the Grand Temple of An, which allowed An and his An-El servants to come and go between the Apotheosium and the Artificial World. The Sealing cut off all travel, communication, or other magical effects from passing into or out of the Apotheosium, trapping An and a sizable number of An-El inside.