What kind of picture does the last movie of the metaword in butterfly lovers depict? What's the role?

Shangcheng describes the scenery of Hangzhou Lantern Festival. The author just came to Mizhou, and happened to meet the Lantern Festival, watching the lights on the street and the moon, and the resulting feelings. Although the number of words is small, it is also "colorful". Writing lights, writing the moon, writing people, and the sound and sound are mixed, which fully shows the bustling scene of Hangzhou Lantern Festival. "Xiatan" describes the commercial colleges in Mizhou. "Lonely mountain people are old" is an exaggerated statement, which makes people feel suddenly changed. With the word "loneliness", all the lively scenes before the "Three Nights in Qiantang" were moved out, which was a contrast for Mizhou Shangyuan, forming a sharp contrast and writing the loneliness and coldness of Mizhou Shangyuan. You don't need one more word, so you feel cold and lonely. The phrase "the fire is cold, the light is thin and the frost is exposed, and the clouds are light and the snow is light" not only describes the cold climate in Michigan, but also makes people feel the emptiness and desolation of the environment. The author of "Once the sea was difficult for water" has seen the excitement of Shangyuan in Hangzhou and then the conscious sadness of Shangyuan in Mizhou. What's more, this time I was transferred from Hangzhou to Mizhou. The environment and conditions have changed a lot, and my mood is completely different. First of all, Mizhou is poorer, rougher and less poetic than Hangzhou. What makes him feel "lonely" even more is that there have been locust plagues and droughts for years, and the people are in dire straits. As an official who loves the people, how can he be happy? The "envoy" who has just arrived and is only forty years old can't help but sigh that "people are old." On the night of going to the Yuan Dynasty, he wandered around casually, heard the sound of flute and drum, and went to have a look. It turned out that the villagers were holding a social sacrifice to pray for a bumper harvest. The scene of farmers' New Year greetings and the sound of flutes and drums here made the author unable to leave for a long time. Until late at night, "the light is cold and the frost is thin", and clouds hang in the suburbs, which is cloudy and snowy. On the surface, the phrase "a faint snowy cloud hangs over the wild" is a sad image, but it writes the hope in his heart and has a kind of joy of "auspicious snow and good years". Su Shi's "Die Lian Hua" is indeed a work with "realm", which writes the true feelings of "the eyes and ears are connected" and expresses the anxiety about the national economy and people's livelihood. Content, pen and ink do not stick to rules, self-expression, where the meaning is, the pen will follow, and work without seeking merit. This word uses the method of turning and contrast, reflecting his situation and mood at that time.