Who is The Patient from The Screwtape Letters and what is their importance?

The patient is a young man contemplating God and Christianity and who soon becomes a convert. He is sincere and thoughtful. When he begins to wander from his newfound faith, he catches himself by reading a book he enjoys and going for a country walk. This brings him to a sense of who he really is and to repentance and a renewal of faith. He is honest enough to realize the friends he has been spending time with are leading him away from God, and he needs to refresh and rededicate himself, which he does. He seems like a thoughtful and intellectually honest young man.