Refers to the legendary Xuan Nv nine days arrival, graceful figure, gorgeous dance clothes. Nine Days Xuan Nv is one of the goddesses in ancient myths and legends in China. It is said that she is one of the Taoist immortals, in charge of medicine and women's affairs, and is often portrayed as a beautiful and moving image.
This sentence vividly depicts the mystery and beauty of Xuan Nv for nine days, and also expresses people's yearning and awe for myths and legends.