He’s possessed of a power which kindles the good in his fellows. Inspiration is infectious, and just so long as he remembers that this power does not derive from himself, but from God, provided he fights off pride and the devil, he and his comrades can do great deeds. But if he allows himself to believe that he’s all-powerful, to believe, in fact, in his own divinity, then he and his edifice will crash to Earth. And this is only another way of confessing a belief, however faltering, in God and his goodness.