On that level, at least, he is the counterpart of Hazel at the end, who becomes the real redeemed human on his way to Jerusalem and Christ. Haze sees the new Jesus's lack of meaning immediately and smashes it, as I remember. As far as Flannery O'Connor is concerned, from my reading, normal belief means seeing that Jesus is Lord.
Resurrection is a reality.
Christ really is the presence of God, the incarnation of God, in human life, and since he is alive and not dead, he can pursue Haze from tree to tree in the back of his mind, something like that. For Flannery O'Connor, normal belief is the Nicene Creed which she spoke at every Mass she attended. The other side of Haze's quest is that undertaken by Lancelot in Walker Percy's Arthurian story by the same name. Lancelot comes to life, so to speak, when he uncovers empirical evidence of a sin, adultry. However, since there is no real evil in the modern world, Lancelot is simply put in a mental institution, where he retells his story to a priest, who is also his longtime friend.