Meaning: The ninth day of the ninth lunar month is the traditional Double Ninth Festival, also known as "Old People's Day". Because the Book of Changes defines "six" as the yin number and "nine" as the yang number, on September 9, the sun and the moon merge with yang, and the two nine are heavy, so it is called Chongyang, also known as Double Nine. The Double Ninth Festival was formed as early as the Warring States Period. In the Tang Dynasty, Double Ninth Festival was officially designated as a folk festival, and it has been followed since then. The name of "Double Ninth Festival" was recorded in the Three Kingdoms period. According to Cao Pi's "Nine Days and the Book of Zhong Yao", "The year is coming to the month, and suddenly it is September 9. Nine is the number of yang, and the sun and the moon are in harmony. It is well-known and thinks that it is suitable for a long time, so it is a feast. "

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(1) At the Double Ninth Festival, there is the custom of climbing mountains first. In September in golden autumn, the sky is crisp and the sky is crisp. In this season, climbing mountains and looking far can achieve the purpose of relaxing, keeping fit and getting rid of diseases. The custom of eating Chongyang cake is associated with climbing. Gaohe cake is homophonic. As a holiday food, it was originally intended to celebrate the harvest of autumn grain and enjoy tasting new grain. After that, the people had the auspicious meaning of climbing high to eat cake and climbing high step by step.

(2) On the Double Ninth Festival, there has always been the custom of enjoying chrysanthemums, so it was also called Chrysanthemum Festival in ancient times. September of the lunar calendar is commonly known as Chrysanthemum Moon, and a chrysanthemum meeting is held on festivals, and people from the whole city go to the meeting to enjoy chrysanthemums. Since the Wei and Jin Dynasties in the Three Kingdoms, it has become fashionable for Chongyang to get together for drinking and enjoying chrysanthemums and poems. In the ancient customs of Han nationality, chrysanthemum symbolizes longevity. In ancient times, the custom of inserting Evodia rutaecarpa was popular, so it was also called cornus Festival. Cornus, as a medicine, can make wine to keep fit and get rid of diseases.