Have you ever met these types of people?

People who seem almost 'supernatural' in nature. It's hard to describe. One time in Portland Oregon in 84. I was tramping in North Park blocks off of Burnside, and around midnight, this guy walks up with a guitar and sits down and plays the most exquisite music. I mean mind bendingly beautiful music, and then he gets up and says "Enjoy your stay on planet earth." and walks away. Or a person I met on a greyhound bus, who knew everything about where I was in my life and in my head. Obsessed isn't really the right word, but there have been a few times in my life when I was profoundly affected by another person who seemed somehow extraterrestrial in nature. Angelic is a word that comes to mind.