The Double Ninth Festival is a traditional festival with a long history in China. It is on the ninth day of the ninth lunar month and has always been highly valued. Cheng Peng, an assistant researcher of the Institute of Literature of the Shanghai Academy of Social Sciences, believes that climbing high to enjoy autumn and being grateful for the elderly are two important themes of the Chongyang Festival. In addition, there are activities such as basking in autumn, releasing paper kites, eating Double Ninth Cake, and drinking chrysanthemum wine. How did the name of the Double Ninth Festival come from? The Double Ninth Festival is also called the Climbing Festival, the Double Ninth Festival, the Chrysanthemum Festival and so on, implying peace, health and longevity. As for the origin of the name of the Double Ninth Festival, Cheng Peng said that in the Book of Changes, the number of "nine" is Yang, and the number of "nine nine" is the same, so it is called "Double Ninth"; Because both the day and the month meet nine, it is also called "Double Ninth". When can the origin of the festival be traced back to? According to Cheng Peng, the existing written records about the Chongyang Festival customs can be found in the Ji Qiu Ji of the Lu Family's Spring and Autumn Annals, which records the ancient people's activities of offering sacrifices to the Emperor of Heaven and ancestors during the harvest in September. According to textual research, the origin of the Double Ninth Festival can be traced back to ancient times. In ancient times, there were activities of worship of gods and ancestors in the autumn. In the Han Dynasty, the Chongyang custom was further popularized. Is it related to the ancient ritual of sacrificing "fire"? It is said that one of the archetypes of the Double Ninth Festival is the ancient ritual of sacrificing "fire". Cheng Peng said that the "big fire" (Antares II) was the time coordinate used by the ancient people to determine the signs of seasonal production and seasonal life. In ancient times, people divided the stars near the ecliptic into 28 groups according to the track and position of the sun, moon and stars, commonly known as the "28 constellations". The horn, kang, di, fang, heart, tail and dustpan in the east form a complete dragon like star (the seven constellations of the black dragon). In the autumn, when the "fire" retreats, people will hold a corresponding farewell ceremony. With the development of society, people have a new understanding of the seasons, and the ceremony of offering sacrifices to the god of fire in September has gradually declined. How deep is the Double Ninth Festival? The Double Ninth Festival is a festival with profound connotation. As time goes by, its customs are constantly enriching and developing. Cheng Peng explained that the written records of the name "Double Ninth Festival" first appeared in the Three Kingdoms Period. During the Wei and Jin Dynasties, the festival atmosphere became stronger and stronger, and there were written records of the customs of appreciating chrysanthemums and drinking alcohol. For example, Tao Yuanming said in the preface to his poem "Living in Leisure on the Ninth Day": "Living in leisure, I love the name of the Double Ninth Festival. Autumn chrysanthemums fill the garden, but I am obsessed with the wine, and I am empty to serve Jiuhua and place my mind on words." In the Tang Dynasty, the Double Ninth Festival was officially held. From then on, the court and the people celebrated the Double Ninth Festival together, and held various activities during the festival. In the Song Dynasty, the Double Ninth Festival was more lively. The Record of Dreams in Tokyo once recorded the grand occasion of the Double Ninth Festival in the Northern Song Dynasty. How did the ancients celebrate the Double Ninth Festival? Chongyang can be regarded as one of the landmarks of the transition between autumn and winter in people's life, and the festival customs revolve around people's feelings in this season. Climbing high and looking far is an important custom of this traditional festival. Cheng Peng said that the custom of climbing in the Double Ninth Festival was mainly derived from the climate characteristics at that time and the ancient people's worship of mountains. In ancient times, there were customs such as climbing high to pray for blessings, worshiping gods and ancestors, and drinking feasts to pray for longevity. In the Qing Dynasty, one of the customs of the Double Ninth Festival in Beijing was to stick chrysanthemum branches and leaves on the doors and windows, "to remove evil and filth, and to attract good luck". Chongyang