You'll find that each of these classic ghost stories is a well-noted, literary masterpiece.
The Odyssey: Book XI
Pliny's Haunted House
Many do not realize that classical literature is full of ghost stories! Some ghost stories are ancient, having been written close to two thousand years ago. Ancient stories about haunting show that people have had ghostly, maybe even spiritual, experiences, having held strong beliefs in the supernatural. Ans those beliefs have been carried forth to us, today.
Classic ghost stories teach us that mankind has craved to know more about life beyond this world and that we have collectively been having paranormal encounters as long as man has existed.