This is what it comes down to:

A boy, age eleven, heart beating fast with excitement

With a little fear, too, maybe

Standing at the platform, sitting in the train,

Waiting to leave

His parents behind and find a world of his own.

xxx

All adventures, ever-changing

All monsters and pets

All pranks and games and fights

All eternal friendship, love and hate and a thousand things in between

All battles, big or small, to save one's heart from breaking

Or to save the world

Lie past, and lie ahead.

xxx

The train leaves.

Loved ones wave goodbye.

One day, he'll do the same for his own child.