In Vladimir Nabokov's novel "Lolita," the phrase "And the rest is rust and stardust" evokes a profound reflection on the transient nature of life. It suggests that beyond the palpable experiences and relationships we forge, there lies a vast, often forgotten expanse of time and matter—reminiscent of decay and the cosmic elements from which we originate. This point encapsulates both nostalgia and the inevitability of mortality.

The quote emphasizes the beauty and fragility of existence, implying that what remains after our lives may be shadowed by both the mundane and the celestial. Nabokov's poetic language invites readers to contemplate the layers of memory and the essence of what truly matters as we navigate our ephemeral journeys. Ultimately, it serves as a poignant reminder that everything we cherish will eventually fade, leaving behind only echoes in the universe.