Answer:
The irony reveals naturalistic themes here establishing how nature is superior and governs the character of the human being, which is one of the main characteristics of naturalistic themes.
Step-by-step explanation:
The idea that the environment determines and governs the human being is clear in this quotation.
The human being tries to get the attention of the Universe, claiming "I exist!" , but the Universe does not seem to care about its insignificant existence, and feels that it has no obligation to this creature.