I've noticed that when I go into the trance state, my muscles will occaisionally jerk, waking up my mind to some degree. It's not just my neck muscles like when my head lowers because of sleep; usually it's a leg-muscle jerk or a full-body jerk. Is this a bad thing? On the one hand, it helps me keep my mind lucid; on the other, I'm worried that my body may not be falling asleep enough.

Any advice, information, or recommendations would be greatly appreciated.