Idiom story: The Chu people have a beautiful pearl and intend to sell it. In order to get a good price, he tried his best to package the pearls. He felt that with noble packaging, the "identity" of pearls naturally rose.

The Chu people discovered the valuable Mulan, and invited skilled craftsmen to make a box (that is, a bamboo raft) for the pearl, and smoked the box with cinnamon spice. Then, on the outside of the box, many beautiful patterns were carved and inlaid with beautiful metal lace. It looks shiny. It's really a delicate and beautiful handicraft. ?

In this way, the Chu people carefully put pearls into boxes and took them to the market to sell.

Soon after arriving at the market, many people gathered around to admire the Chu people's boxes. A Zheng people hold the box in their hands and can't put it down for a long time. Finally, he paid a high price for the Chu people's box. Zheng paid the money and came back with a box. But he came back after a few steps. The Chu people thought that Zheng people regretted returning the goods. Before the Chu people could finish thinking, Zheng people had come to the Chu people. I saw Zheng people take pearls out of the open box and give them to the Chu people, saying, "Sir, you left a pearl in the box. I'll return it to you when I come back." So Zheng gave the pearl to the Chu people, then looked down at the wooden box and went back.

The Chu people stood there awkwardly with the returned pearls. He thought others would appreciate his pearls, but he didn't expect the exquisite outer packaging to exceed the value in the box, so that "a presumptuous guest usurps the host's role" made the Chu people laugh and cry.

Idiom origin: Han Fei, during the Warring States Period, Han Fei's "On the Left of Han Feizi's Foreign Reserve": "Chu people have sold pearls to Zheng, which are the cabinets of Mulan, decorated with cinnamon peppers, pearls, roses and feather jade, and Zheng people bought their rafters and returned their pearls."