The humble person is open to being corrected, whereas the arrogant is clearly closed to it. Proud people are supremely confident in their own opinions and insights. No one can admonish them successfully: not a peer, not a local superior, not even the pope himself. They know - and that is the end of the matter. Filled as they are with their own views, the arrogant lack the capacity to see another view.
The humble listen to their brothers and sisters because they assume they have something to learn. They are open to correction, and they become wiser through it.
It is a chilling experience to meet face to face with a person so supremely sure of his inner light and his interpretation of the Bible that he rejects not only what you say but also what exegetes and theologians and saints say.