There was a businessman in the State of Chu who sold jewelry in the State of Zheng. He carved a pearl box with precious Mulan, smoked it with spices made of cinnamon, and decorated it with jewels and jadeite. A man of Zheng bought a box, but returned the beads in the box to the man. It can be said that this jeweler is good at selling boxes, but not at selling jewelry!
Moral: Metaphor means no eyesight, improper choice, and secondary things are better than the main ones. Buying gifts and returning pearls is a derogatory term, and its similar words are: putting the cart before the horse, putting the cart before the horse, negative salary, putting the cart before the horse, and improper choice.