I guess my answer is "Yes" I believe in ghosts, although I've never seen one. However I HAVE been visited in two separate dreams by my deceased parents. I had a nice conversation with my mom. I know it wasn't just a dream, because of how we conversed and what we talked about. I won't go into details. Just know I do believe in "something" more.
Maybe they came to me in a dream rather than as ghosts because they knew I'd have a heart attack if I actually
saw a ghost!
I must say though, they looked "different" to me... so maybe they were ghosts in a dream.