In my opinion the first half of this song exists to serve the second half of the song. Now don't get me wrong, I am fond of the heavy piano beginning, the vocals, lyrics, and when the whole band is in swing. Then, just when you think you don't need to listen to the entire song to know what it's about, things change -and that's what caught me. The song is completely broken down to a few piano chords and lyrics, only to then be built up even bigger, better and stronger than before there's even a banjo that joins in. I guess that's what he means when he says "it starts stopping when it stops stopping".