What does Qiu Jiazi mean? There is a saying: there was a rain in autumn, and it was cloudy for forty days.

Jiazi ranks first among the sixty flowers, and autumn Jiazi is the first day in beginning of autumn. Dark clouds refer to rainy days. There are ninety days in autumn, and forty days means that it often rains, but it doesn't mean forty days in a row.

China people attach importance to the symbolic meaning of beginning and beginning, which means that it rained on the day when autumn began, and the autumn rain has been raining that year. Maybe there is some truth.