Empty

"Before God, Aurora, The Darkness, Death, Creation, Destruction, your precious little Earth, and of course yours truly, what was there?"

- Chaos asking someone of the nothingness.

The void is also called Sheol, emptiness or nothingness. It was there before the primordial beings came into existence and it was once occupied by them all.

The Empty was first revealed by the Reapers. However, she only knew the basic function of the Empty. That is, once something or someone has been sent into the Empty, they cannot return; if the Empty wants to keep what it has absorbed. It does not have a persona per word, but its ruler does and even has consciousness while it sleeps. Amara called it an infinite series of paradoxes, forces, concepts, conflicts, and thoughts, all either at war, at peace, or in neutral, and they have been in that state for ages. However, in the "heart" of the void is the "true" void. From this void came Amara, God, the horsemen of the Apocalypse and the pagan gods, and here is the true insane form of the cosmic entity. It holds the void together, much like the garden holds the sky together. The void as a state of elemental non-existence is beyond science and supernatural by definition, and since the void is infinite, it was the original source of magic and reality.

History
Before time itself was understood linearly, the void has always existed. According to Castiel, the Void is something that defies understanding and at the same time is easy to grasp. All that is known is that it is a void that can destroy anything that enters it. However, it is possible for the cosmic entity to expel what enters the void, thereby restoring its existence.

Appearance
The true appearance is unknown it can be perceived correctly only by primordial beings even the archangels cannot perceive it correctly it appears as perceives only a huge darkness.

After Life
The void also serves as life after death.

All angelic and demonic beings will sleep in the void forever except for a couple.

Demonic and angelic hybrids also enter the void, but they are more likely to wake up.