This song is about how people attempt to definitively attribute reasons to why we exist (why the world spins), when there's no way to know this for sure. Ryan seems to believe it spins for no reason in particular (just for fun).
We're not here for a reason, we're just here: don't search for a reason that doesn't exist, just enjoy life.
Furthermore, the imagery in the song seems aimed at highlighting the beauty in our inherently pointless world.
This song is about how people attempt to definitively attribute reasons to why we exist (why the world spins), when there's no way to know this for sure. Ryan seems to believe it spins for no reason in particular (just for fun).
We're not here for a reason, we're just here: don't search for a reason that doesn't exist, just enjoy life.
Furthermore, the imagery in the song seems aimed at highlighting the beauty in our inherently pointless world.