User blog comment:Dominic1743/“The Heroes' Journey” Discussion/@comment-108.36.76.116-20200124023326/@comment-77.190.104.77-20200130094041

Wobbuffetmax, what makes you think he isn't the power source himself? That blueish emitting essence? Either way. If God was a programmer and the whole Supernatural multiverse his simulation, he can create himself an an "in-universe avatar" with any kind of visual effect upon being "hurt".