How is Mountain City arranged in detail and what is its function?

Mountain City. Original text and translation:

Original text: Huanshan Mountain City, one of the eight views of Yi, but it has not been seen for several years. Sun Gongzi Yu Nian and the same people drink upstairs, suddenly see a lonely tower on the top of the hill towering, high inserted in the green dark, look at each other and be suspicious, and there is no such Zen temple in the near middle.

No, see dozens of palaces, Biwa Feiyong, the beginning of the realization of the mountain city. Not long, the high wall is wide, even six or seven miles, and the city is actually in the city. There are those who are in the building, those who are in the hall, and those who are in the square, vividly in their minds, and hundreds of millions.

Suddenly, the wind rose, the dust was reckless, and the city was vaguely uproaring. Since the wind is clear and the sky is clear, everything is nothing, but.

Dangerous. One, directly Xiaohan. There are five buildings with open windows; There are five points in the line, and the sky outside the building is also.

The higher the building, the less bright it is. Count to eight layers, cut like a star. and above, it is ethereal, and its level cannot be counted.

And the people upstairs come and go, or stand by or cracked, not the same. Overtime, the building gradually lowers, and its top can be seen; and gradually as usual; and gradually like a high house; Suddenly like a fist like a bean, it is invisible.

I heard that there were early walkers, and saw that the mountain was crowded with people, and there was no difference between it and the world, so it was also called "ghost market." Cloud.

Translation: "Mountain City" in Huanshan, yes.

Zichuan County. One of the eight scenes, but often not once in several years. (One day) Sun Yu Nian Gongzi was drinking upstairs with his friends in the same industry, and suddenly saw a lonely pagoda on the top of the mountain, high in the sky, (everyone) you look at me, I look at you, and surprised and confused, thinking that there is no Buddhist temple near here.

Not long after, I saw dozens of palaces, the tiles were green, and the roofs were high up, and then I realized that it was originally a "mountain market". Not long after, a high city wall appeared, with a short concave and convex wall, which stretched for six or seven miles, and turned out to be a city. There are buildings in the city, halls, and neighborhoods, all of which are clearly presented in front of you, and you can't count them.

Suddenly, a strong wind blew, and the whole city became blurred. After a while, the wind ceased, the sky cleared, and all the previous sights were gone, except for one tall building, which was connected to the sky, and there were five rooms (on each floor), and the windows were open, and there were five bright places, which were the sky outside.

Counting layer by layer, the higher the room, the smaller the bright spots; Counting to the eighth layer, the bright spot is only as small as a star; Further up, it becomes dim, as if there is nothing, and its layers cannot be seen clearly. People upstairs (on the lower floors).

Come and go. Each does his own thing, some leaning (railing) and some standing, and his posture is different. After a while, the building gradually lowered and the roof could be seen; Gradually, it became the same as an ordinary building; Gradually, it became a high bungalow again; Suddenly, it shrank back to the size of a fist, (and then shrunk) to the size of a bean, and finally disappeared completely.

I also heard that there were people who got up early and rushed to see houses, markets, and shops on the hills, which were no different from the conditions of the earthly world, so people called it a "ghost market."