Ghosts be doing what?

http://www.history.com/topics/historical-ghost-stories


This article talks about ghosts and how they came to be. It says that Places that are haunted are usually believed to be associated with some occurrence or emotion in the ghost's past; they are often a former home or the place where he or she died. This relates to Beloved because Beloved’s ghost haunts Sethe. It says that traditional signs of haunting range from strange noises, lights, odors or breezes to the displacement of objects, and bells that ring spontaneously. In Beloved, the ghost rumbles around the house and is malicious. Beloved’s ghost is looking for something or feels unfinished, probably because her own mother killed her.  The article states that ghost exists separately from his or her body, and may continue to exist after that person dies and can return to "haunt" the living which Beloved’s ghost does. I don’t think Beloved will leave(ghost or human reincarnation) until the past is discussed and dealt with.