Pretty sure I have. You probably have to. They take many forms including human ones. I once saw one come out of my fiancee and go back in. Yeah, fun. read more
I have also ‘seen’ demons while being possessed by one, but I consider what I saw to be more of a trick played upon me, a projection of what the demon wanted me to see (to scare me) than it’s real physical form. read more
I have seen real demons and spirits when I awoke my third eye, after a few times evoking a demon and reading on up how to summon one, I saw one standing at the back of me, it didn't talk but looked like brown mist. read more