The structure of the poem conveys the central idea as it mimics the movement of a winter day.
A central idea simply means the main idea in a literary work. It is the underlying message in the story.
Here, the structure of the poem conveys the central idea as it mimics the movement of a winter day. The length and sound mimic the howling nature of wind.
Learn more about central ideas on:
https://brainly.com/question/2684713