What I used to think would be fun is to be able to walk around as a ghost after life, just unable to interact with reality, but it raises the question if I would be able to interact with other ghosts. If yes, then it would be insanely crowded. If no, then you would be totally alone for all eternity. Nobody would ever be able to acknowledge your presence, you couldn't communicate with anyone... It sounds kinda creepy.
Technically, ce3rtain kinds of ghosts can interact with people and objects. HOWEVER. If you ever happen to see a ghost, it is not really "there." Ghosts project an image of themselves into any onlooker's mind, thus allowing them to "dissapear". In fact, you do not even have to be dead to become a ghost.
Poltergeists are the spirits of greiving, angry, or saddened people that have been dislodged from their body. But Hauntings are the actual PLACE where someone died causing things such as strange noises, commonly screams and sobbing. And in fact, the only thing that makes up a ghost is the still-living mind of a decased person.
Btw, I'm still sad from my nightmare :(
