The red sleeves add fragrance "was a literary allusion that originated from a poem in Bai Juyi's Song of Everlasting Regret in the Tang Dynasty: " In the words of farewell, there is an oath of mutual understanding. On the seventh day of the seventh lunar month, in the middle of the night when no one was whispering in the Longevity Palace. In heaven I wish to be lovebirds, on earth I wish to be twigs. There will be no end to this hatred forever." Among them, the phrase "red sleeves add fragrance" referred to the love story between Emperor Wu of the Han Dynasty and Dong Xian. Originally, it referred to the love relationship between Emperor Wu of the Han Dynasty and Dong Xian. Later, it gradually evolved into a literary allusion to describe the inspiration and passion that poets and writers needed to create. It was also used to describe the emotions and motivation a woman needed to create. Now," adding fragrance to the red sleeves " had become a commonly used term in literature and art to describe the emotions and inspiration of the creator and the necessary conditions needed in the creative process.