Ghost

A ghost is the imprint of a Soul that has not fully left the Material Plane for the next life. This is most likely due to some unfulfilled purpose: a deeply profound spiritual binding to a desire, object, location, or fellow creature, maintained through a life that was suddenly and unexpectedly severed.
Ghosts are completely incorporeal, unable to physically interact with any objects of the material world. However, they can pass freely between the Material Plane and the Border Ethereal, and see into both worlds at the same time. They appear as a translucent version of their mortal form upon death; any wounds from their passing may also appear as part of their visage, though they will not notice or fully comprehend it.
Ghosts may not realize they have passed, though these ghosts are unable to fully process new information, such as that they have died. Others are aware of their condition, and use the fear of the supernatural to manipulate others into carrying out the tasks they no longer can.
A ghost's soul can be sent to the afterlife by fulfilling whatever mortal wish it had. For instance, a ghostly priest attached to a ruined altar might pass on upon the altar's restoration and blessing, or a ghostly parent attached to their orphaned child might pass on when the child is adopted and loved by another parental figure.

Type

Supernatural