According to the order of visiting Daxinganling, the text can be divided into three parts.
The first paragraph (the first natural paragraph) talks about the feeling of just entering this primitive forest.
The second paragraph (the second to sixth natural paragraph) from the ridge, forest, flowers, three aspects of the characteristics of the landscape of the Daxing'anling. First of all, it introduces the ridge, forest and flowers, and then it talks about the associations produced by the sights.
The third paragraph (7th natural paragraph) talks about the feeling of seeing and hearing when visiting the forest.
At the end of these three parts of the talk of "kind, comfortable", reflecting the author with the deepening of the understanding of the Daxinganling, this "kind, comfortable" experience is gradually deepened.