Greylands

When a mortal dies if their spirit is free to pass on it travels to this plane, described as being out side of time and matter, for this reason it is incredibly dangerous to transvers this space, take your body with you and it could dissolve into nothingness, leave it behind and it may have died of old age while you were looking around. Once a spirit has passed onto this plane you less powerful spells like Revivify are no longer able to revive the person and spells like Raise Dead are needed unless the plane has begun to sap the power from the tether between body and soul.

Those who have either ventured to this plane or been revived after a prolonged death describe their experience as being very devoid of all emotion, the sky is grey the ground is grey and there is no day or night, you never feel tiered, hungry, parched or pain, soon you lose track of all sense of time and simply wonder the Greylands. The spirits that wonder the plane are distinguishable as humanoid, quadruped or giant beast but more than that it's difficult to see any more, there is a main dark core of their being which is then enveloped in grey cloud like smoke, with pinpoints of light where the creatures eyes would be.

Those who have attracted the attention of a god or a powerful entity your spirit may be raised from this plane, the god's bring their devoted followers to The godly Plane and craft them a new body to inhabit creating a new divine servant in the process, though demons and devils can also take spirits from here if they have power over them resulting in often a far more unpleasant experience of the afterlife.