When I reflect on my own life, I see very distinct seasons and in each of those seasons, God has used different means of slaying the dragon within me. Currently, He is using my marriage, and like Lewis writes about Eustace's experience with Aslan, it can be painful. After all, I would prefer we operate under the illusion that I'm perfect! I have no flaws, we have no arguments, and Matthew can go to his grave never seeing me at my worst. But, that's not reality and that's not God's design for marriage.