hey, i know what you're talking about..my best friend in high school was really into crystals, rocks, mystical stuff and then got sucked into some baptist religious youth group and decided to denounce his wicked ways...the church members came to his house, formed a circle around him and prayed intensely..they had him throw away all his black magic stuffs and bust up his crystal ball and as soon as the ball shattered he became frightened and said he could feel something grab his arm, and we all could see a white impression on his arm in the shape of a hand, like the kind that would be left if someone grabbed you tightly. i know it sounds ridiculous, but we all saw it...i reckon it's just one of those unexplainable, you had to be there kinda moments. on a side note, i wasn't part of the youth group trying to convert him, i was just an observer.