Well, I think first we have no REAL grasps of the paranormal, while
some who claim they are experts, still have much room to doubt
their credibility on the subject of ghosts and supernaturals.
One thing common to us all; we fear what we have no knowledge
of.
Secondly, ghosts has no standard physical definitions, in fact, in
the world of science, they don't and cannot exist.
As portrayed in movies, the line between ghosts and Demons/Devil is
blurred, leaving most of us skewed by our own assumptions. Again,
there's no real definitions of a ghost.
In my own opinion, ghosts are largely more FELT then seen. Given
that according to science, they lack physical volume, and as such
not visible. It would perhaps be closer to thr truth, to say that
ghosts are made up of pure energy taking no physical form gaseous
or otherwise solid.
In this respect, a sudden sense of dread and fear in a deserted
building or house, is best heeded that there is ghostly presence.
You need not have to see one to say that they're there or
around.
Some people are more sensitive to their presence, while some are
oblivious.
