I think we all have the capacity for intuition, and some people are really gifted in this area. "Readings" are pretty subjective, and they are certianly not predictions of any certain future. But I do believe certain people get "images" and inklings of stuff that seems beyond the scope of regular knowledge.

I've met a few clairvoyents and they kind of creep me out, but I get "intuitions" about things all the time that prove to be true, but I don't think I'm creepy!