How does the poem "Mount Zhongnan" describe the majestic posture of Mount Zhongnan by means of "changing scenery"?

the method of changing scenery means that when describing a scene, people move from scene to scene, and with the change of observation points, new pictures are constantly displayed. The first choice of this poem is to look at it from a distance and write about the future: its massive height near the City of Heaven, from the mountains to the corner of the sea. It writes about the lofty and vast Mount Zhongnan. The couplets are written into the mountains to see the mysterious and unpredictable scenery. This is the scenery before entering Mount Zhongnan. "a central peak divides the wilds, and weather into many valleys." It's about what you see when you climb the middle peak, and it's about looking down from top to bottom. These three sentences are from a distance, looking near and looking down, respectively. From the author's three observation points, you can write the wonderful scene of Mount Zhongnan from different angles.