In William Faulkner's view, life is transient and ultimately leads to oblivion. The essence of existence lies not in grand achievements, but rather in the small, often overlooked moments. He uses the metaphor of "Kilroy was here" as a symbol of leaving a mark or an imprint of one's existence, even if it’s just a simple acknowledgment of having been alive.
This perspective emphasizes the importance of personal legacy and the connections we make. As we approach the end of our lives, what truly matters is the impact we've had, however modest, and the way we've interacted with the universe, ensuring that our presence is felt, if only for a brief moment.