For instance, I consider the old lady burn down the monk's hut because she felt that the monk insulted her 20 plus years of kindness. It started after the girl, with the old lady's directions, caresses the monk. The monk then replied, "An old tree grows on a cold rock in winter. Nowhere is there any warmth." Then the girl goes and relays this message to the old woman.
The old lady took it to mean that he hasn't seen such warm kindness in this cold