The Dark-World is a world of misery and suffering. It is inhabited by formless creatures and powerful Dark Beasts. Life is not the same in Dark-World as it is in other planes of existence. Whenever an individual dies, they are subsequently revived in a different part of the world. This cycle repeats itself for centuries, until all the bad karma in a person expires, at which point they are reborn in the Material World. The Dark-World is an exact opposite of the Heavenly Abodes.
It is the last world on the Cosmic Pillar.