The Spirit Board (Ouija) is not a fortune teller. It does not tell you the future. It is for talking to spirits and ghosts (if you believe in them). I am not quite sure if using one in a dream means that you are actually talking to a spirit, but just because a spirit tells you that something will happen does not mean that it is true. Spirits can lie just like you and I can. I would not put to much faith in the outcome of what the board said even if it was an actual spirit. But it might be smart to watch out just in case.