How to reflect the gloomy and frustrated poetic style of Du Fu's poems?

Linguistically speaking, Du Fu's poems are generally regarded as "gloomy". The word "depressed" first appeared in the Southern Dynasties, and it has the meaning of "the body is depressed, the sun and the moon are beautiful" [1 1]. Later, Du Fu wrote the word "depressed and frustrated", which accurately summarized the language of his works. "As for depression and frustration, be agile at any time. A further study of Du Fu's poems shows that the formation of his poetic style is closely related to his adherence to Confucianism. At the same time, Du Fu was at the end of his heyday. When he was young, he was ambitious. "Once you reach the peak, you will see that other mountains are dwarfed under the sky. "[13]. Later, the Anshi Rebellion broke out, the national fortune declined, and the official career was ruined. The great gap between ideal and reality has also caused great changes in Du Fu's poetic style, approaching realism. The individualization of image selection in Du Fu's poems is the basis of his language. The images that often appear in Du Fu's poems, such as ancient blockhouses, autumn clouds, apes whistling, broken torches, steep gorges, defending the world, solitary boats, fallen flowers, sunset and other natural landscapes, as well as ordinary people such as weaver girls, old women, old farmers and wives, as well as powerful forces such as officials, generals and villains, all show Du Fu's urgent mood of "saving the world and helping the people" and his spearhead to confuse Gan Kun. The evaluation of Du Fu's later poems in Wu Ling's Poems Around the Stream: "Yang opens and Yin closes" says: "Only the meaning is far-reaching, and the next sentence is unknown". Wu Ling added: "When a mortal writes a poem, he only says one thing in one sentence, but he says two more. Du Fu's poems can say three, four or five things in one sentence; Ordinary people write poetry, but it is far more than dozens of miles. Du Fu's poems can be said to be hundreds of miles, two armies and States, and the world is wonderful. "[ 15].