I've heard of this energy vampire stuff and, whether it truly exists or not, it is a well-known concept in Chinese culture so Sha didn't invent it. My guess is that, if there's any effect at all, it's psychosomatic.
Here's the question my husband and I keep asking but have yet to receive an answer for: Sha claims to be training his minions to heal people when the wars
Forum:
"Cults," Sects, and "New Religious Movements"