"It is human self-renunciation when a man denies himself and the world opens up to him. But it is Christian self-renunciation when a denies himself and, because the world precisely for this shuts itself up to him, he must as one thrust out by the world seek God's confidence. The double-danger lies precisely in meeting opposition there where he had expected to find support, and he has to turn about twice; whereas the merely human self-resignation turns once."