The human soul has need of security and also of risk. The fear of violence or of hunger or of any other extreme evil is a sickness of the soul. The boredom produced by a complete absence of risk is also a sickness of the soul.

The man who has known pure joy, if only for a moment ... is the only man for whom affliction is something devastating. At the same time he is the only man who has not deserved the punishment. But, after all, for him it is no punishment; it is God holding his hand and pressing rather hard. For, if he remains constant, what he will discover buried deep under the sound of his own lamentations is the pearl of the silence of God.

Punishment is a vital need of the human soul.

If there were no affliction in this world we might think we were in paradise.

Human existence is so fragile a thing and exposed to such dangers that I cannot love without trembling.

When we hit a nail with a hammer, the whole of the shock received by the large head of the nail passes into the point without any of it being lost, although it is only a point. If the hammer and the head of the nail were infinitely big it would be just the same. The point of the nail would transmit this infinite shock at the point to which it was applied. Extreme affliction, which means physical pain, distress of soul and social degradation, all at the same time, constitutes the nail. The point is applied at the very center of the soul, whose head is all necessity, spreading throughout space and time.

It is only the impossible that is possible for God. He has given over the possible to the mechanics of matter and the autonomy of his creatures.