How does irony reveal naturalist themes here?

Answer:

Irony reveals naturalist themes by highlighting the complete indifference of the universe toward human existence. In the poem, a man asserts his existence as if it should be important, but the universe responds by saying it feels no sense of obligation to him. This creates irony because while humans tend to view themselves as significant, naturalism suggests that we are actually insignificant and helpless against a vast, uncaring cosmos. It emphasizes that humanity is self-centered in its expectations, while the reality is that nature remains indifferent to our presence.