In the dense mountain forest, there lived herds of stout and strong red deer. They were alert and suspicious animals and ran about with agility. It was very difficult for people to catch them.
When some people came to the mountains to hunt, they would first seek for the yu (the supervisor of the mountain forests in ancient times), request him to be their guide, and inquire in detail about the red deer's patterns of activity and their usual haunts. Only with full preparations would they carry their knives and arrows, lead their hounds, and enter the dense forest for the siege. As a result, the red deer dashed into their ring of encirclement and fell one by one under the rain of arrows.
However, when other people came to hunt, they would not first seek the yu to understand the situation but rushed rashly into the forest. After a busy day, they could not find a single trace of the red deer and could only return dejectedly empty-handed.