The quote reflects a profound sense of existential exploration, highlighting the character's realization that despite possessing everything materially, it is his connection to deeper, darker forces that truly defines him. The notion that "everything belonged to him" underscores a superficial ownership, indicating that one's identity and worth extend beyond physical possessions.

Moreover, the emphasis on understanding "what he belonged to" reveals a quest for self-awareness and acknowledgment of the more sinister aspects of one's fate. This suggests that true belonging is more complex, hinting at the struggle between the light and dark influences that shape a person's life in "Heart of Darkness." The characters grapple with their entanglements, uncovering the moral and psychological implications that drive their existence.