The quote from "American Psycho" reflects the notion of a fragmented identity, where the character Patrick Bateman embodies a façade rather than a true self. He describes himself as an abstraction, suggesting that what people perceive is merely a superficial construct. The emphasis on being "not there" indicates a deep existential void that defines his existence beyond what others can see or feel.

This existential theme highlights the disconnection between outward appearances and inner realities. Bateman's ability to engage superficially with others—shaking hands and sharing comparable lifestyles—further emphasizes the illusion of connection while underscoring his profound emotional detachment. Ultimately, it speaks to the emptiness of modern identity and the challenges of authenticity in a superficial world.