Once a Season

She goes to the same ginkgo forest every autumn, sits on the same bench, and knits a scarf. After weaving, dismantle it, dismantle it and weave it, and never give it away. A boy passed by for three consecutive years and finally couldn't help but ask: "Who are you knitting for?" She said: "For someone who promised to come see me every autumn." The boy said: "Has he been here?" She shook her head. In the autumn of the fourth year, the boy came with a bunch of ginkgo leaves and said, "If he doesn't come, can I come?" She was stunned and put the half-knitted scarf around his neck. The boy smiled: "It's quite long." She said: "That's right, I have been knitting for four years." The ginkgo leaves fell very slowly that year, as if they were delaying time for them.