What festival is Dongliba after dusk?

Dongli wrote about the Double Ninth Festival after dusk, which is a traditional folk festival in China. It is celebrated on the ninth day of the ninth lunar month every year. The Double Ninth Festival originated from the worship of celestial phenomena and evolved from the harvest sacrifice in autumn and autumn in ancient times.

In the historical development and evolution, the Double Ninth Festival is a mixture of various folk customs, bearing rich cultural connotations. In the folk concept, "nine" is the largest number, which means longevity, and it places people's wishes for the health and longevity of the elderly.