What are ghosts? Of course, it is well known that many believe ghosts to be the disembodied spirits of humans and animals that once walked the face of this Earth, while others believe ghosts to be some sort of unintelligible energy imprint that has remained imprisoned upon our environment. Some believe ghosts to be demons while others do not believe in ghosts at all. One day, scientists may be able to prove just what ghosts are; but today, we only have the experiences and experiments from which to draw some conclusions.