The worst case of this I had actually scared me by its clarity. One night right before the end of the school year I had a dream about being in this weird class, with some people I know some I didn't and a different teacher. A year later I was sitting in class in my second day of high school and was feeling realy out there once I realized what just happened. I know, doesn't sound very believeable, just happened. I have no explanation for it.
No it doesn't prove faith. Or God. I don't know how to explain it away though.