What does it mean to open the wild goose gate in August?

"Come to Yanmen in August" means that in August, geese begin to fly south.

This sentence comes from the saying, "Throw away the fan in autumn and wear it casually in February and August. There is little rain in summer and early frost in autumn. In August, the geese come to open, with frost under their feet. " .

Vernacular translation:

After beginning of autumn, the weather turned cold, so there was no need for a fan. The weather changed from cold to hot in February, from hot to cold in August, and began to change from hot to cold. Coupled with physical differences, people's clothes are naturally different. When there is little rain in summer, autumn frost comes early. In August of the lunar calendar, geese begin to move south. When geese fly by, the first frost will come.

"beginning of autumn" has a great influence on farming. In ancient agricultural society, farmers paid as much attention to "beginning of autumn" as festivals. The ancients thought that if the weather is fine in early autumn, it will be fine, and you can wait for a bumper harvest. Similarly, it is important to "beginning of autumn" sooner or later. Everything is harvested in July and lost in June and autumn.