Why it's called Catcher in the Rye

I believe that the book was named Catcher in the Rye because it basically is an analogy that sums up Holden's major struggle through out the book. He struggles with maturity and immaturity. The two worlds that surround him, adulthood and childhood. When Holden talks about how he would like to be the Catcher in the Rye, he describes his dream job. He would like to catch children who are playing in a field, and when they get too close to the cliff at the end of the field Holden would swoop down and catch them. I think that's a bigger metaphor for society. Holden wants to save the children and their innocence and prevent them from growing up and being a bunch of phonies like everyone else in the adult world. He's the only person who can stand in both of these worlds. The only one who knows the horrors of the cliff, and what happens if the children fall off of it, and what it's like to be in the meadow.