@RexRed,
I had always been under the assumption that 'being possessed by evil spirits' referred to crazy people.
Certainly many miracles are attributed to the Jesus story. I find the things he said and did much more interesting, though the miracles are noteworthy, supposedly proving that he was divine. As for the 'miracles', I do note that faith healers exist even in todays world. There seems to be a lot of argument about them, which I've never bothered looking into (doesn't much interest me), and without doing the research personally, it would be hard to know which slant the 'researchers' went into the research with.
What I have read - not on miracles, but on the subconscious, is there are documented cases of the subconscious healing the body (notably a case of a new 'miracle trial drug' taken by a male with terminal cancer, and his cancer retreated or grew according to what he read in the paper. He eventually died after reading too many times that it was a hoax...it did turn out to be nothing), or preventing injury (the fire-walkers), or providing extremely abnormal strength (though it injures the body), and other things.
Though I haven't read into it, acupuncture can be applied through accupressure, and there are many adherents of Reiki.
Still, as I said, it's not the miracles that are of true interest in the Jesus story.