muddy and tattered

This picture made me think of this nugget from C. S. Lewis:

“I know all about the despair of overcoming chronic temptations. It is not serious provided self-offended petulance, annoyance at breaking records, impatience et cetera doesn’t get the upper hand. No amount of falls will really undo us if we keep on picking ourselves up each time.
We shall of course be very muddy and tattered children by the time we reach home. But the bathrooms are all ready, the towels put out, and the clean clothes are in the airing cupboard. The only fatal thing is to lose one’s temper and give it up. It is when we notice the dirt that God is most present to us: it is the very sign of his presence.”