It is said that this couplet belongs to Wang Xizhi. Because Wang Xizhi's calligraphy is very good, the Spring Festival is coming. The Spring Festival couplets he wrote just hung in front of his house, and disappeared the next day, because someone would secretly pick them up and hang them in front of his house at night. In order to avoid being stolen, Wang Xizhi wrote such a couplet: Happiness never comes in pairs, but it never rains alone. I told someone to hang it outside the door, so no one dared to steal it. Wait until New Year's Eve, Wang Xizhi wrote a few more words, which continued on this pair of couplets, namely:
Until today, there is no double happiness;
It never rains but it pours.
The beauty of this couplet is that the foreboding of the first half sentence is drowned by the auspiciousness of the second half sentence, which is even more auspicious when misfortune comes. It was said that happiness never comes in pairs, but now it has come; It never rains but it pours, that is to say, all the bad things come at the same time, but all the bad things have passed last night, and even the worst disaster has vanished with the wind and rain last night.