I personally think this song is about feeling trapped in a depression or a rough time in your life when things are grim and very lonely. Perhaps the "throw away the only one" is a reference to suicide but also a sobering reminder that this is the only life you get.
I personally think this song is about feeling trapped in a depression or a rough time in your life when things are grim and very lonely. Perhaps the "throw away the only one" is a reference to suicide but also a sobering reminder that this is the only life you get.