The spirit of childhood is a spirit of simplicity and joy that goes together with the greatest intelligence and the most advanced knowledge. Here more than anywhere else the law of contrasts holds: one must be great to be secure enough to be truly childlike -- just as one must be strong to be infinitely gentle, and wise in order to permit oneself to be foolish. Spiritual childhood is a matter of trust and self-surrender into God's hands.
It does seem a strange thing to count suffering as joy, yet there's a truth here in that suffering helps to build one's character. Some of the most beautiful people I know are those who have passed through the flames and come out strengthened. If it happens to clay, why shouldn't it happen to us.