I think it's about how everyone dreams of who they'll grow up to be when they're young, but we lose sight of it as we grow older. When we grow up we start to lose the meaning of our lives that used to seem so clear to us as kids.
But, the song is also about how we should regain that sense of wonder and excitement that we held as youth and find meaning again through the loneliness and doubt. When the song goes "take a ticket and get off the line," I think it's saying to leave that old line of thought and go find a new one. It's a challenge to go out and make something of your life, like you used to think you'd do as a kid.
I think it's about how everyone dreams of who they'll grow up to be when they're young, but we lose sight of it as we grow older. When we grow up we start to lose the meaning of our lives that used to seem so clear to us as kids.
But, the song is also about how we should regain that sense of wonder and excitement that we held as youth and find meaning again through the loneliness and doubt. When the song goes "take a ticket and get off the line," I think it's saying to leave that old line of thought and go find a new one. It's a challenge to go out and make something of your life, like you used to think you'd do as a kid.