In Joseph Conrad's "Heart of Darkness," the idea is expressed that the true essence of any period in our lives is inherently impossible to communicate fully. This encompasses the depth, truth, and meaning of our experiences that shape us. The sentiment suggests that the subtleties that impact our lives cannot be easily shared or articulated with others.

This notion culminates in the acknowledgment of solitude in our existence. Despite shared experiences, each individual's perception remains uniquely personal. The quote emphasizes that, much like in dreams, we navigate our realities in isolation, making genuine connection and understanding extremely challenging.