In Victor Hugo's "Les Misérables," the protagonist finds himself trapped in a cycle of relentless thinking that brings him no joy. His thoughts echo in the darkness, and instead of providing comfort or answers, they lead him to question their purpose. This internal struggle signifies a loss of hope and contentment, as he grapples with despair and the futility of his situation.

As he reflects on whispers of ideas and possibilities, he meets them with a sense of nihilism, asking, "What is the use?" This phrase encapsulates his feelings of defeat and emphasizes the overwhelming weight of his circumstances. Instead of engaging with his thoughts positively, he feels burdened by them, revealing a deep emotional and existential crisis.