In Milan Kundera's "The Unbearable Lightness of Being," he reflects on the idea that human beings approach life without preparation or rehearsal. Like actors thrust onto a stage without prior practice, individuals face life's experiences directly for the first time, which raises questions about the value and weight of those experiences. This notion suggests a sense of vulnerability and novelty in each moment of existence.

Kundera further explores the metaphor of life as a series of sketches, indicating that our experiences may not have the depth and completeness of a fully developed performance. Each moment is fleeting and unrepeatable, leading to the philosophical contemplation of life's significance. The absence of rehearsals implies that we must navigate life's unpredictability with a sense of exploration, enriching each encounter with the potential for meaning and discovery.