like when you have a song stuck in your head and you don’t quite realize it yet you’re singing it, whistling it, everywhere, a few hours go by before you notice if you do. how did To Sir With Love get stuck here for so long? and a bigger longer song in the background of everything, the life song. maybe it starts and ends with your own heartbeat like that student said, playing in the background, on some level behind everything, playing verses, choruses, bridges, solos.