How does Dai Wangshu's Impression express the urgent need of poetry?

The poet uses synaesthesia to connect a group of images in series, describes the sound from the visual point of view, closely follows the theme of the poem, and makes the short poem show magical charm. This poem consists of five groups of juxtaposed images: bells, fishing boats, pearls, sunset and sobs. These images are not necessarily logically related, but have the same connotation. Good things appear and disappear in dark, soothing and gentle tones. In addition to the rhetorical method of audio-visual empathy, there is a similar flow trajectory. Bell (hearing) —— falling into a deep valley, fishing boat (vision) —— water heading for mist, blue pearl (vision) —— falling into the dark water of an ancient well, sunset (vision) leaving with a smile, whimpering (hearing) ——— rising and returning from a lonely place. These images are all symbols of the poet's mood. Through combination, they are easy to find. These five groups of images have different rhythms and are not rigid. The first verse of the poem is like a brisk overture, with one or two groups more ethereal and soft. The third group, though illusory, is more decisive. The second section is the emotional center of the whole poem. The guess in the first section is that "hypothesis" (yes, if) becomes "affirmation" here-the smile on the face is erased by the sunset. If the first section is relatively thin, this section is relatively thick, but it is still relatively soothing, expressing the treasure and attachment to the beautiful things that I once had. The last sentence is the ending, and the beautiful things are finally lost, causing the poet's deep melancholy and heavy rhythm, and even using four "solitude", the lingering sound is profound.