Ghosts are the supposed apparitions of the dead. A ghost is often thought to be the spirit or soul of a person who has remained
on Earth after death. According to some sources, a ghost may be the personality of a person after their death, and not tied
directly to the soul or spirit. Every culture in the world carries stories about ghosts, but its beliefs vary substantially
across time and place, with disagreements both as to what ghosts are and whether such things exist in reality.