What do you mean by lack of clothes and food? Is there a moral?

Moral: lack of clothes and food, nothing.

Couplets are composed of upper and lower couplets and horizontal batches. Generally, the number of quilt words in the upper and lower couplets is singular, such as five, seven, nine and eleven, and the horizontal number is four. There is a word missing in the upper couplet, a cross missing in the lower couplet, and ten is homophonic with food. One is homophonic with clothes, and the other is short of clothes and food.

There are four words, but only two words, east, west, north and south, missing two words, that is to say, there is nothing at home.

Source:

During the Song Dynasty, Lv Mengzheng hated the injustice in the world. Every Spring Festival, he uses couplets to express his grievances. One year, he created a couplet composed of numbers: the first couplet: 2345, the second couplet: 6789, with only two words: North and South.