How Do You Stay Humble in Exorcism?

In Screwtape letters, Lewis said there's two arrows we can fall into. One is to think Satan doesn't exist; the other is to go looking for him under every rock. The more that we better understand the devil, I think we come to understand that he's really nothing to fear. In an exorcism, a person who's possessed is having the light of Christ thrown upon them. And when that happens, the demon will scurry and to get away.