What are ghosts?
Based on the title of this website Ghosts! Are they real?, you’ll know that it’s about the reality of ghosts, and haunting’s. To be honest, nobody knows with absolute certainty whether entities such as ghosts are real or not. But if we make the assumption for a few moments that ghosts are real. Then, in my opinion the next logical question to ask is. What are ghosts? What are these ghosts, that haunt our homes and scare us in the middle of the night? The simple answer to this question is that, ghosts are the disembodied spirits or souls of once living persons, persons who now walk the night and intrude into our nightmares and fantasies. This definition, is not very satisfying to anyone, believer or skeptic. Most paranormal researchers believe there are two distinct types of ghosts, the residual ghost and the intelligent ghost.
The first type of ghost would be that of a residual ghost. It is a type of ghost, that is not real in any empirical or physical manner. I would not refer to this type of ghost as a spirit of a once living person, because the essence, soul or energy that animated that person in life would not be present. It would not have any intelligence, personality or physical mass and it would not be able to manifest itself at will, nor would it be able to interact with the living in any meaningful way.
A ghost of this type would very much be like watching a motion picture, that has an actor who is now deceased. The only real difference, it would be more akin to a 3 dimensional holographic projection of that actor. It, the ghost would be like an image of that once living person that somehow imprinted itself upon the physical environment.
Read more here: http://www.aformerskeptic.com/whatarethey.html