These conversations only seem to go one way.......
Can you prove the existance of angels/demons?
NO, but I can give stories
Could these encounters be caused by anything else?
Yes, I suppose they could
Then we can conclude that in the absence of any real evidence to the contrary, these were caused by drugs, or mental disorders.
Fortunately, and unfortunately, they have a point about stories not being evidence (if all stories were considered evidence for things, the world would make a whole lot less sense)and also about some things likely being caused by drugs/mental disorders.
However, I will agree with you on the existance of demons/angels. There really does come a point in one's Christian life where it would be dishonest to oneself to deny what you have seen/experienced.
Have I seen personally? Yes. Do I have friends that have seen personally? Yes. Will someone follow this post and ask if I've done drugs? Probably. the answer? No.
I have stories. I have what I believe because of experience. Will I convince anyone else? No, probably not. It's not really my goal here to seek to change someone mind, I'm just looking for opinions and good information.
Some people's paradigm allows them to believe. Some people's doesn't. I'm always up for a good story though, if you've acquired the first hand accounts you were looking for.