The ancients divided everything in heaven and earth into Yin and Yang, with Yin representing darkness and Yang representing light and vitality. Odd numbers are positive and even numbers are negative. Nine is an odd number, so it belongs to Yang. On the ninth day of September, the sun and the moon meet, and the second sun is heavy, so it is called "Double Ninth Festival". This day coincides with the Mid-Autumn Festival, and the sky is crisp, which is very suitable for climbing and overlooking. Therefore, many literati will choose to climb mountains, drink and write poems on this day, leaving many poems behind.
During the Double Ninth Festival, between seasons in Xia Dong, the weather gradually turns from hot to cold, and from warm to cold, so people are easily affected by epidemics. Moreover, under the influence of the concept of yin and yang, the Double Ninth Festival symbolizes a very high yang number, and everything that is extremely high will fall, leading to disaster. Therefore, people think that Chongyang is a dangerous season.
At that time, people fled the original area by hiking in the mountains to avoid possible disasters. There is a legend here, which embodies the meaning of the ancients climbing mountains to avoid disaster.
Ethnicity
The origin of ancient traditional festivals is related to ancient primitive beliefs, sacrificial culture, astronomical phenomena, calendars and other humanistic and natural cultural contents, and contains profound cultural connotations of respecting morality, etiquette and music civilization. Double Ninth Festival has a long history. In ancient times, there were different customs in the north and the south. In the pre-Qin period, local customs had not been integrated and circulated, and the activities of the Double Ninth Festival were rarely recorded in writing.
The existing written records about the custom of the Double Ninth Festival were first found in Lu Chunqiu Qiu Ji Ji, which recorded the ancient people's activities of offering sacrifices to the Heaven Emperor and ancestors in September. According to research, the origin of the Double Ninth Festival can be traced back to ancient times, and there are ritual activities to worship gods and ancestors in autumn and season.