My Ouija Experiment, Playing with Demons

you could possibly read up on astral projection, lots of people have encountered spirits and other types of creatures/beings.

www.astralpulse.com would be a good place to start.

It's not going to work because it doesn't work like that, it dosen't contact anything except your own imagination and subconscience.
Don't listen to people telling you it's evil, it's the devils phone, you will never be save again.
People who claim that people were killed by a demon or the glass flew across the room and the like, are only repeating hear-say and chinese wispers.