What is the beauty of Tang Bohu's mountaineering poems?

Although the first two sentences are as plain as water, the last two sentences are magnificent and exciting. Although they do not conform to the rhyme of quatrains, they are an excellent ancient poem. This poem uses the technique of "anti-arm", starting with plain and simple words, then turning to the peak of writing, and ending with sentences full of meaning or affection, thus improving the style of the whole poem.