I think this is a song about hopeful regret. Regret that the speaker didn't do enough in the time available or with what he or he had but hoping and questioning whether there is more than this, whether or not there is more to life than what has already been experienced.
I think this is a song about hopeful regret. Regret that the speaker didn't do enough in the time available or with what he or he had but hoping and questioning whether there is more than this, whether or not there is more to life than what has already been experienced.