It’s much more than the dry figures to study or embracing the moist air of nature. In ‘When I Heard the Learn’d Astronomer,’ Walt Whitman emphasizes the importance of studying nature that can tap into deeper thoughts and knowledge.
In this poem, stars play a contrasting role to the learn'd astronomer's scientific approach. They represent a sense of wonder and mystery that cannot be captured by facts and figures. The speaker becomes disenchanted with the lecture and seeks solace in the outdoors, where they can appreciate the stars in "perfect silence." The stars are a symbol of the beauty and mystery of the natural world, and a reminder that there are some things that cannot be fully explained or understood by human knowledge alone.
When I heard the learn’d astronomer,
When the proofs, the figures, were ranged in columns before me,
When I was shown the charts and diagrams, to add, divide, and measure them,
When I sitting heard the astronomer where he lectured with much applause in the lecture-room,