Mist filled the land of death, cooling the ever cold terrain. The terrain was large and covered with buildings, mountains and lakes that are no longer in the land above. In the dark misty place below earth.

Dead things go.

Because this is the underworld.

When in the world of the dead, the way to leave is to die which here means to live. Everything here is switched from normal reality. It’s sort of confusing if you try to think about it from stand point of an alive human.