Respuesta :
In this poem, Whitman is criticizing knowledge. As the narrator listens to a knowledgable astronomer he suddenly becomes bored. There is so much science to what he is saying ("the proofs, the figures.. charts and diagrams") but through the poem one notices that the narrator finds that there is not a truly profound meaning, what the astronomer is saying it's empty. The free verse structure reflects the same concept, in free verse, there is not a specific format, structure, style, or rhyme scheme that needs to be followed. However, the narrator is more focused on the message that he is trying to convey rather than trying to fulfill many rules and follow a rigid structure.
The free verse structure of the poem makes it a little bit harder to spot what the central theme of the poem is.
What is a Central Theme?
A central theme is a universal idea that keeps recurring in text or literature. It can also be defined as the universal Idea that the writer is trying to pass across.
It is to be noted, however, that the Central Idea revolves around Astronomy.
Learn more about Free Verse at:
https://brainly.com/question/1509140