Can dead people communicate through the living?

Delving into these things is of the occult, stay away. If there is a Demon (ghost) in your house or someone elses I recommend contacting a priest, like from a real church. Spirit writing and all those things are from posession of a demon and are bad for your health (seriously). Ouiji boards and all those things are ways for the devil to move you away from God. you get into all this witchcraft and stuff and you just get messed up. These are not dead relatives nor dead friends, no matter what these "ghosts" say. The answer is no dead people cant, but demons can and will using everything they can to allow you to be possessed by them. - God is love.