In this chapter, Holden Caulfield is engulfed in his feelings of isolation and despair, prompting him to seek solace from his younger sister, Phoebe. After a series of disheartening experiences in New York City, including a failed date with Sally Hayes and a growing sense of disconnection from those around him, Holden begins to realize how much he misses the innocence and authenticity that Phoebe embodies.

Holden's journey to find Phoebe is marked by his internal conflict and emotional turmoil. He reflects on the significance of his sister in his life, recalling how their relationship has always been a source of comfort and understanding. As he navigates the bustling streets of New York, he feels increasingly alienated from the adult world that he perceives as phony and superficial. This sense of alienation is compounded by his deteriorating mental state, raising the stakes for his encounter with Phoebe.

When Holden finally reaches their old neighborhood and approaches their home, he is filled with a mix of anticipation and apprehension. He understands that Phoebe, with her youthful spirit and straightforwardness, represents a connection to the innocence he desperately wishes to protect. However, he struggles to articulate his feelings to her, often resorting to vague phrases and half-hearted explanations. This inability to express himself fully highlights Holden's deeper issues with communication and vulnerability, which stem from his fear of adulthood and the responsibilities that come with it.

Upon reuniting with Phoebe, Holden is overwhelmed by a wave of affection, but he also grapples with the weight of his own emotional struggles. Their interaction is characterized by a genuine bond, as Phoebe shares her own concerns and perspectives, prompting Holden to reflect on his current state of mind. She challenges his cynical views on life, and her innocence serves as a stark contrast to his jaded outlook. In Phoebe, he finds a semblance of hope, yet he remains conflicted, unable to entirely shake off his feelings of despair.

The chapter captures the essence of Holden's internal battle: his desire for connection and understanding is at odds with his fear of exposing his vulnerabilities. As he interacts with Phoebe, Holden begins to confront the complexity of his emotions, oscillating between moments of clarity and confusion. This interaction with his sister becomes a pivotal moment in the narrative, as it underscores Holden's longing for meaningful relationships while also illustrating his struggle to navigate the complexities of growing up. Ultimately, Chapter 15 reinforces the themes of alienation, innocence, and the challenges of communication, as Holden seeks refuge in the one person who can understand him amidst his chaotic thoughts.