In most demonstration videos, a yellow bamboo practitioner stands very firm until they have enough god energy ready. Then their friends run at them and get blasted into oblivion. Those who survive give testimonials about how real it all was. It seems like a fighting style vulnerable to unscheduled attacks, blows from the side, and opponents who aren't playing make-believe with you, but I bought the training guide anyway. I'm just some asshole making fun of them, and even I was disappointed.
The book lays out a rice diet plan and teaches you some weird meditation techniques, but has shockingly little information on how to summon seizure beams. It's almost as if the author was hoping some other phenomenon had already given the reader energy powers and they were simply interested in some plain white rice recipes. Here's an an actual excerpt from the part about getting your energy beams to work. I added the blood splatter so my friends would think I was good at it: