A dream of a demon may seem like a pretty scary experience. After all when was the last time you remember having a dream about a daemon that was meant to help you clean house instead of killing you? Usually when you dream of a demon face monster or some kind of demon angel it usually means something bad, and yet at the same time there can also be positives to it as well. If you have a dream about a daemon it depends on how your life has been going recently as to the interpretation of the dream.
That is the best definition of a personal demon, it is a fault that you find in yourself, any kind of imperfection that you see with your body or your mind, any memory you have that you wish you didn't have of something that you did which was very embarrassing or something that you did once, the memory of which you wish you could escape. These are the things that will follow you around all your life and periodically they will show up in your dreams too. There isn't a whole lot that can be done about that little bit. It may not be the best thing in the world to know you can't get rid of the buggers, but at least it helps to know that dark forces of Satan are not conspiring to kill you and drag you straight down to hell. This is always something that you can rejoice about a little bit.