hat are ghosts? I'll give you the answer straight out: No one knows for certain.
There are, however, many theories to explain the thousands upon thousands of documented experiences that people around the world have had since the beginning of recorded history. Ghosts and hauntings seem to be a relatively common part of the human experience. And there appear to be several types of ghosts or hauntings, and more than one theory might be needed to explain them all.
The traditional view of ghosts is that they are the spirits of dead people that for some reason are "stuck" between this plane of existence and the next, often as a result of some tragedy or trauma. Many ghost hunters and psychics believe that such earth-bound spirits don't know they are dead. Veteran ghost hunter Hans Holzer wrote, "A ghost is a human being who has passed out of the physical body, usually in a traumatic state and is not aware usually of his true condition. We are all spirits encased in a physical body. At the time of passing, our spirit body continues into the next dimension. A ghost, on the other hand, due to trauma, is stuck in our physical world and needs to be released to go on."
Also known as "intelligent hauntings," these ghosts exist in a kind of limbo state in which they haunt the scenes of their deaths or locations that were pleasant to them in life. Very often, these types of ghosts are able to interact with the living. They are, on some level, aware of the living and react to being seen on the occasions that they materialize. Some psychics claim to be able to communicate with them. And when they do, they often try to help these spirits to understand that they are dead and to move on to the next stage of their existence.
RESIDUAL HAUNTINGS OR RECORDINGS
Some ghosts appear to be mere recordings on the environment in which they once existed. A Civil War soldier is seen on repeated occasions staring out a window at a house where he once stood guard. A dead child's laughter is heard echoing in a hallway where she often played. There are even cases of ghost cars and trains that can still be heard and sometimes seen, even though they are long gone. These types of ghosts do not interact with or seem to be aware of the living. Their appearance and actions are always the same. They are like spirit-level recordings - residual energies - that replay over and over again.
"A traumatic moment in time leaves an indelible impression on the building or area," says Strange Nation in "What Is a Ghost?," "replaying itself for eternity. This could be anything from a 'glimpse of the past' - a recreation of some traumatic or emotion-laden event - to footsteps up and down a hallway."
What causes these recordings to be made and how and why they are played back is a mystery. "How and why past events are recorded and replayed repetitiously is not understood," writes Lauren Forcella. "Whatever the actual mechanism, it apparently possesses longevity as the encore performances of a haunting can continue for decades or longer. Generally, the haunting is a fragment or portion of an actual event."