How can Du Fu's poem "Climbing Yueyang Tower" have beautiful scenery? What image did you use and what scene did you write? What kind of artistic conception has it created?

First couplet narrative, parallel couplet description, neck couplet lyric, tail couplet summary. The whole poem is "Climbing Yueyang Tower", but it is not limited to "Yueyang Tower" and "Dongting Water". The poet abandons the exquisite description of the scenery in front of him, and focuses on writing from the big picture, calling for heaven and grabbing land, worrying about the country and the people, tragic and desolate, which makes people cry. Looking back in time, it covers Wu Chu and Yueguan Mountain in space. The sadness of his life experience and his worries about the country are boundless, which blends seamlessly with the water potential of Dongting and forms a profound artistic conception.