In Samuel Beckett's "Murphy," the interactions between Mr. Murphy and Mr. Endon illustrate a profound sense of isolation and existential reflection. Mr. Murphy’s experience of seeing himself as unseen by Mr. Endon highlights the emotional and perceptual distance in their relationship. This dynamic emphasizes the theme of individual perception, where Mr. Endon, absorbed in himself, cannot acknowledge Mr. Murphy's existence.

The notion of "unseen" serves as a pivotal motif, representing the existential struggle and loneliness experienced by Mr. Murphy. The finality of their last encounter shows how Mr. Murphy becomes a mere speck in Mr. Endon's world, underscoring the isolation that defines their connection. Overall, this passage encapsulates the intricate interplay between self-awareness and the inability to connect with others.