posted on Aug, 4 2003 @ 02:31 PM
Sure they can. Many times, they communicate with the living through dreams, which are no more than images in your mind. If you believe in demons, sure
they could also.
Personally, I believe in human spirits, earthly spirits (from trees, animals etc), and other wordly spirits (classified as shadow beings many times,
as well as anything from another dimention). I do not believe in demons as such, but they could be as real as anything I do believe in.