What's the use of writing about the weather first and then the scenery?

1, the first paragraph of this article. Function: highlight the sinister environment, exaggerate the tense atmosphere, pave the way for describing the behavior of the old hero later, and highlight the heroic behavior and legend of the old hero. 2. Paragraph 38: The moon went down, and there was some rustling wind in the reed pond in the second half of the night. Function: Set off the old people's painful self-blame for being injured at an older age. 3. Issue 58: The next day, at noon, it was sultry. On the day of a red sun, a layer of smoke floated on the water. Function: Describe the sultry weather, render a calm and mysterious atmosphere, lay the groundwork for writing the devil's bath later, and promote the development of the story. 4. Paragraph 58: There is no figure in the lake, only a group of white silk-like waterfowl, which also escaped from the devil and flew north, and fell under the big lotus leaf to enjoy the cool. Function: Against the cruelty of the devil. The water here is really as flat as a mirror, as clear as the blue sky, and slender aquatic plants float gently under the water. Function: Describe the calm water surface, render the calm atmosphere, and set off the unsettled atmosphere, which indicates that there will be a fierce battle. Explain to the old man the environment of destroying the enemy and pave the way. 6. Paragraph 62: There, a tender reed flower, an unfolding purple velvet, is floating in the wind. Function: Describe the open reed flowers, set off the relaxed and happy mood of the elderly after victory, and highlight the tall image of the elderly.