@XNovalX I mean, when the author first mentioned the four heavenly kings of cosplaying I immediately assumed that that isn't how real cosplaying works, and while it is based on something much more realistic, I got the feeling that it's all part of the fictitious environment the author is portraying, where in this unverse cosplaying DOES work like that, with the four heavenly kings and whatnot, and feelings directly influence the power of your cosplaying by influencing your belief in it.
Kind of like the power of friendship and/or love in typical shonen series. And as we all know, they do help increase a person's strength, but not nearly as impactful as, "I believe in my friends therefore I have now gained the ability to punch through the evil Demon Lord of this world," as anime and manga so frequently dramatize it.