Yes the Exist you if we say god is there so ghost is also there , if positive is there so negative is also there , just things some can see but some can and if you see discovery Channel or some other channels , many time they play documentaries on real ghosts movies or footage or stories
ghost are not true...there is no such ghost (the soul of a dead person?) its not ghost that you see, or scaring you, but the bad spirits who pretend to be a ghost..so beware when you see one, its just a prayer away, and they cannot harm you..