The material plane: the dead home.
The dead homech. 1, 4, 13
“You're in a dead home, a dead curtain, go back” (1). The Devil God's dying memory “spews forth corruption onto the material plane you have left, this being his creation … your dream, your dead home” (4). A raging God covers the lands “into sickening rot of material bondage” (13).
The islandch. 16
The Euclids live on an island: the South mountains of Binah and the stony North mountains of Tiphareth.
Cast downch. 36
Curse falls into “the dirt of humankind” like a meteor, and Lucifer and Ouroboros are cast down into the Earth together.
Note: a plane of existence, not necessarily a sphere, with the planets and the Sun around it as in old cosmology.