Tale As Old As Time
"Huh?"
"They are not ghosts," Havu repeated, correcting Fyn. "They are souls, spirits, if you will. They are entirely different things. Ghosts are wandering things incapable of thought, Spirits, on the other hand, are those whose souls have survived when a being dies and no longer has a physical body in which to live. Ghosts stay in a place, they do not know why they died, they assume they are very much still alive and breathing. Spirits know that they have long run out of time. The reason they are wandering is that of a tie, often emotional, to a loved one. They probably have unfinished business or something they want to tell to those they have left behind."