A gust of wind came, and the withered yellow leaves fell from the branches, floating toward Xu Yang's direction.
A single tree can shed many leaves.
Xu Yang remembered that his family used to have a tree which would shed its leaves every autumn, covering the yard so thoroughly that it could never be fully swept away.
After finishing the sweeping, by the afternoon there would be a fresh carpet of leaves again.
It wasn't until the tree was cut down that this situation ceased.
So, planting trees in the yard can be quite troublesome; they look nice, but when it's time to sweep, the trees don't seem so appealing anymore.
In the forest, there's no one to sweep. A gust of wind means countless falling leaves.
The ground is covered with them.
Walking among the drifting leaves gave Xu Yang a different feeling.
He thought of the Black Kite he saved today.
The reward was the gratitude of the Black Kite.