"Standing on the precipice that separates the rye field of childhood from the cliff of adulthood, Holden wants to protect childhood innocence from the fall into disillusionment that necessarily accompanies childhood" (Phillips). .
Holden's preoccupation with childhood and youth innocence has a lot to do with the struggles he's been through. Although Holden vows in the beginning that he won't talk about his adolescence, Salinger lets several of his disturbing occurrences slip through as Holden is reminiscing. "Throughout the novel, it becomes increasingly clear that Allie's death was one of the most traumatic experiences of Holden's life and may play a major role in his current psychological breakdown "the cynicism with which Holden avoids expressing his feelings may result from Allie's death- (Phillips). Holden reminisces throughout the novel about how much he misses Allie and he even says to Phoebe once that Allie is the only thing that he likes. The only problem is, Allie's dead and Holden doesn't believe in the afterlife. In Chapter 21, Holden visits Allie's grave. The coincidence of Allie's memory and Holden's preoccupation of the ducks in Central Park help to explain one of the main metaphors of the novel. Holden is bothered by sudden, inexplicable disappearances. The ducks have vanished suddenly just as Allie did (Kaplan 42, Phillips). Not only does Holden miss Allie immensely, but he also appears to be envious of him. He never had to live past his childhood therefore never having to enter the hypocritical, "phony-, and painful world of maturity. .
The reader is able to see that the reason Holden clings on to Phoebe and her purity is that he wishes he were back in her state, uncorrupted by the world and his bad experiences. Until the reader meets Phoebe, all of Holden's thoughts are bleak and troubling. When Holden is around Phoebe, we see a new side of him "one that is completely capable of happiness (Downey).