The quote reflects the narrator's identity and approach to life, emphasizing their American roots and self-taught, free-spirited nature. They describe their journey as one marked by initiative, where they create their own path. The reference to "knocks" symbolizes the opportunities and challenges faced, suggesting that both can stem from pure intentions or more dubious motivations.

Furthermore, the mention of Heraclitus highlights the connection between a person's character and their destiny, suggesting that ultimately, one's true nature cannot be hidden or altered. Through this metaphor of knocking, the narrator suggests that regardless of how one approaches life, the authenticity of their character will inevitably reveal itself.