Song is not just about any decision, it\'s about waiting for a wife to decide to have kids. The horses leaving and the burning stable are an allegory for dwindling fertility. This is why the song mentions growing old and why there is references to \'settling down\' (your restless heart growing old, calm of the storm). With this in mind the last part of song ties in nicely, the longer you wait before deciding to have kids, the less meaningful your decision is (less chance of conceiving, ultimately resulting in wasting their time (lives).
Song is not just about any decision, it\'s about waiting for a wife to decide to have kids. The horses leaving and the burning stable are an allegory for dwindling fertility. This is why the song mentions growing old and why there is references to \'settling down\' (your restless heart growing old, calm of the storm). With this in mind the last part of song ties in nicely, the longer you wait before deciding to have kids, the less meaningful your decision is (less chance of conceiving, ultimately resulting in wasting their time (lives).