Angelology

Aetherworld
The Aetherworld is the abstract sentient omnipresent realm that encompasses all of existence, and is the thing that kick-started it all.

The physical area of the Aetherworld exists as the overlapping layer of all of material creation, meaning all of time, space, and matter.

Just above it, operating as the atmosphere, is Heaven itself.

Properties of the Aetherworld
Because the Aetherworld is above conventional time and space, beings who live there are conventionally immortal due to the fact that time has no relevance to them. In fact, time in the Aetherworld is a mere liquid substance, as common to run across as Aetherworld's bodies of holy water.

The Rebirthed
The rebirthed refers to the souls that have matured. The mortal coil that holds a soul functions as the egg. Whenever a soul is immature by the release of one mortal coil, a new mortal coil wraps around them in hopes of proper maturing. This is how reincarnation works.

Once matured, the rebirthed are helped to be pulled out of the mortal coil by a Soul-Walker class known as the reapers. The reapers judge the souls based on their sins. If the sins outweigh the good, the soul is sent to a one-way straight path to hell. Otherwise, their path would be a fork in the road between heaven and hell.