What artistic techniques are used to describe the scenery in the first couplet of the poem "Climbing High"?
——Using the artistic technique of rendering
The wind is strong, the sky is high, the apes are screaming in mourning, and the white birds are flying back from the clear sand in Nagisa. The first couplet borrows six kinds of scenery: wind, sky, ape, Zhu, sand, and bird, and modifies it with words such as urgent, high, sad, clear, white, and flying, indicating the sequence and environment of the festival, and exaggerating the strong autumn mood. The scenery has distinct characteristics of the Kuizhou region. These two sentences are not only couplets of work pairs, but also self-pairs within the sentences, such as "sky high" vs. "fengji", and "shabai" vs. "zhuqing". With rigorous syntax and polished language, it has always been regarded as a good sentence.