They wouldn't believe it if you proved it to them. Can you imagine how embarrassing that would be?
It's one reason they despise rock concerts and kill/worship epileptics, working yourself into a state of mental hysteria is the bedrock of their religious experience, so if you're not writhing for Jesus you're dancing for SATAN.
This is creepy. I just discovered this guy last night and was about to post. I highly recommend looking up his other videos. (Kenneth E. Hagin tag, please.)