"A ghost is someone who hasn't made it - in other words, who died, and they don't know they're dead. So they keep walking around and thinking that you're inhabiting their - let's say, their domain. So they're aggravated with you"

This quote by Sylvia Browne suggests that a ghost is a spirit of somebody who has actually died but has actually not yet realized that they are dead. They are still living in the very same place they were when they lived, and they are uninformed that they are no longer living. They might become upset with the living due to the fact that they feel like they are invading their area. This quote recommends that ghosts are not always malicious or evil, however rather confused and uninformed of their own death. It is possible that they are attempting to communicate with the living in order to learn what has taken place to them. It is very important to bear in mind that ghosts are not necessarily something to be feared, however rather something to be respected and comprehended.