It was witchcraft. No seriously, it was some thing to do with releasing the negativity in the body. It has to do with 7 points in the body.
Supposedly the crystal moves if it the point is open and flowing freely. If the crystal doesn't move, then it needs re-energized, and the sweeping motions over the body, moves the energy in, and then she smoothed it over the body.
She isn't crazy... Although those who know her, think she is at times. We call it her voodoo magic. = )
The boys thought it was weird but neat at the same time. It seemed to work.
