Ghosts are said to come back from the dead, sometimes to haunt the living, sometimes to wander about. These monsters are often pictured on Halloween decorations. All Hallow's Evening. Some people believed that on the night of October 31st all of the spirits of the dead would walk the earth. Some believed that forest spirits would pretend to be hungry humans and go from door to door asking for food.
Children go from door to door asking for candy.
Adults, often, have costume parties. In the context of Halloween this suggests that ghosts, poltergeists, or other supernatural beings reside in some place. The story is that a man named Jack made a deal with the Devil, but he tricked the Devil, and caught him in a tree. Frankenstein, Godzilla, and vampires are all examples of famous monsters from literature and film. A type of ghost that is usually noisy and evil.