The key passage:
To your grace and to your mercy I ascribe it that you have dissolved my sins as if they were ice. To your grace I ascribe also whatsoever evils I have not done…. Who is the man who will reflect on his weakness, and yet dare to credit his chastity and innocence to his own powers, so that he loves you the less, as if he had little need for that mercy by which you forgive sins to those who turn to you. There may be someone who has been called by you, and has heeded your voice, and has shunned those deeds which he now hears me recalling and confessing of myself. Let him not laugh to scorn a sick man who has been healed by that same physician who gave him such aid that he did not fall ill, or rather that he had only a lesser ill. Let him therefore love you just as much, nay even more. For he sees that I have been rescued from such depths of sinful disease by him who, as he also sees, has preserved him from the same maladies.
— Confessions, II/7/15
They kept me far from you, those fair things which, if they were not in you, would not exist at all.
So that which is of God both keeps us from and calls us to him?
Joys that I should bewail contend with sorrows at which I should rejoice, but on which side victory may rest I do not know…. You are the physician; I am a sick man. You are merciful; I am in need of mercy.
God is the Composer, and his symphony contains both dissonance and consonance, the former to resolve into the latter?