In Joseph Conrad's "Heart of Darkness," the quote "We live as we dream--alone" encapsulates the themes of isolation and existential reflection inherent in the novel. It highlights the profound solitude that individuals experience, suggesting that despite the connections we pursue, we ultimately navigate our own inner landscapes, much like the dreams we cherish. This notion underscores the psychological and physical journeys that characters undergo, revealing the darkness within themselves and the world around them.

The novel, set against the backdrop of colonial Africa, emphasizes the contrast between civilization and savagery. Through the character of Marlow, Conrad explores how personal dreams and ideals can be shattered by the harsh realities of existence. The solitude encapsulated in the quote points to the alienation individuals feel as they confront their truths, reinforcing the idea that our most intimate experiences are often solitary, even amid the chaos of external relationships and societal obligations.