The Tang Dynasty is known as the era of poetry, and the Mid-Autumn Festival was officially regarded as a festival in the Tang Dynasty, and was associated with the meaning of admiring the moon and reuniting with relatives and friends. Zhang Hu wrote "Mid-Autumn Moon", "The blue and falling osmanthus are full of beauty, and Qingqiu is the prime time. It's a good night all year long, and you can see the light from thousands of miles away." He strongly praised the Mid-Autumn Moon as the most beautiful month of the year, and Bai Juyi's "Huayang Guanzhong Eight" "On the night of the fifteenth day of the lunar month, inviting friends to play with the moon" says: "Humanity says that the bright moon in autumn is beautiful. How about inviting us to enjoy it? On the autumn altar in Huayang Cave, there is a lot of clear light tonight." In order to invite friends to enjoy the beautiful moon of the Mid-Autumn Festival, Color represents the reunion of friends. Bai Juyi had a lot of emotions about the Mid-Autumn Festival. He expressed his deep feelings to his close friend Yuan Zhen in "During the Night Ban on August 15th, Recalling the Moon of Yuanjiu": "On the night of March 5th, the new moon shines, and the old friend from two thousand miles away "Heart." During the Mid-Tang Dynasty, many poets' Mid-Autumn moon appreciation poems often conveyed the longing for relatives and friends who were unable to reunite, inheriting the sentiment of "the moon shines on the sea, the world is far away at this time" since the early Tang Dynasty. Tradition. Wang Jian's "Looking at the Moon on the Fifteenth Night to Send to Doctor Du" lamented: "The white trees in the courtyard are full of crows, and the cold dew wets the sweet-scented osmanthus without a sound. Tonight, when the moon is bright and everyone looks at it, I wonder whose house I miss in autumn?" Some people gather together with their families to enjoy the bright moon and celebrate their reunion; Some couples are separated and meet each other thousands of miles apart and miss each other. These poems and chants on the Mid-Autumn Night show that the custom of admiring the moon during the Mid-Autumn Festival was very common among the literati and upper-class people in the Tang Dynasty. They not only appreciated the natural beauty, but also wrote about the majestic mountains and rivers and the thousands of miles of friends. They showed the poetry, wine and romance, as well as spending time with relatives and friends. The feeling of having a drink together.