In Philip K. Dick's novel "Flow My Tears, the Policeman Said," the theme of existence is intricately connected to the idea of being haunted. The quote "To live is to be haunted" suggests that living inherently involves grappling with memories, regrets, and the specters of our past choices. Dick explores how these haunting elements shape personal identity and influence our actions in a bizarre, dystopian world.

This notion resonates throughout the narrative, as characters confront their fragmented realities and the echoes of their former selves. The haunting presence of lost relationships and unfulfilled desires serves as a reminder that our lives are often defined by what we have experienced and what continues to linger in our minds, marking a profound commentary on the human condition.