What does Wang Anshi's poem Yellow River mean?

The extraordinary ambition of the poet in this poem reflects the enterprising spirit of the people in the prosperous Tang Dynasty. Among them, the first two sentences are what you see. "The Mountain Covers the Day" is about the view, the mountain and the scenery seen when climbing the building, and "The River with the Ocean Discharging Gold" is about the close-up view, the water is spectacular and magnificent. Here, the poet captured the rivers and mountains of Wan Li in a very simple and plain language with just ten words; When we read these ten words a thousand years later, we seem to be underground, and we feel open-minded when we see the scenery. Looking into the distance, a touch of sunset sank to the endless rolling mountains in front of the building and disappeared into Ran Ran at the end of the field of vision. This is the sky view, the distant view and the western view. The second sentence is about the Yellow River flowing through the front and bottom of the building, roaring south, then turning east in the distance and flowing to the sea. This is from the ground to the horizon, from near to far, from west to east. When these two poems are combined, the scenery of up and down, far and near, and things are all contained under the pen, which makes the picture look particularly broad and distant. As far as the second poem is concerned, the poet can't see the Yellow River entering the sea from the stork building. The sentence is written in the middle of the poem, which is a way to combine the foreground with the sky. This writing increases the breadth and depth of the picture. Calling the sun "daytime" is a realistic style. The setting sun holds the mountain, and the clouds cover the fog. At this time, the brightness of the weakened sun is even dimmer, and the poet directly observes the wonders of the sun. As for the "Yellow River". Of course it is also realistic. It flies like a golden ribbon in the mountains. What the poet presented to him was a magnificent picture. This picture is still in a fast-changing dynamic. It's only a short process to walk by the mountain for a day; The Yellow River flows to the sea, but it is an eternal movement. If this kind of scenery is beautiful, then it is a dynamic beauty, full of infinite vitality and lively beauty. This is not a so-called "freeze frame", not a precious fossil or specimen. We were deeply impressed by the generosity of the poet. Write the last two sentences. "But you have broadened your horizons by three hundred miles", a poet's endless desire to explore, wants to see further and see where his eyesight can reach. The only way is to stand higher and "walk up a flight of stairs". "A thousand miles" and "the first floor" are imaginary numbers, which are both vertical and horizontal spaces in the poet's imagination. The words "to be poor" and "to be better" contain many hopes and longings. These two well-known poems are not only unexpected, but also very natural, close to the first two. At the same time, the use of the word "Lou" at the end also plays a role in pointing out that this is a poem about climbing stairs.