From what I have come to understand is you are not necessarily a witch, or not a christian, or demon possessed. It basically it is what path you choose to follow spiritually, and most people do not choose to have precognition dreams. They happen naturally, and are usually genetic, but most people won't admit they have them if they do, because society as a social norm decides whether it is acceptable or not, and labels it the way they percieve it, and what they personally believe. It is what you believe about it that matters. The bible talks about dreams as well as other religions, and spiritual literature. It's always been there through centuries and time. I would just encourage you to go to the library, or research online and find your own path and beliefs about it, and determine what feels right for you.