It is a song about losing someone and to me it is in death. How does one really mend a broken heart when the one true love dies? The blue bird is significant as so many want you to "move on" and a blue bird is typically used in fairy tales as "happiness" and the blue bird keeps coming back and you don't even tell those blue birds that your true love died. You can't even speak the words as there is no happiness anywhere in the beginning. Then as time goes on you start to get angry and begin telling the blue birds they are wrong, there is no way to mend a broken heart! You can't even say the words that he is gone forever because those words feel like a lie and you start to cry again. You start dreaming that you are back together again and just want to be where your true love is and imagine being in you true loved one’s arms. Oh, how so awesome and sweet that feeling would be! Then the little blue bird could come as you would be happy again and not all torn apart. Then as you tell yourself the truth that your true love is dead and begins to try and put your broken torn heart together again and to teach your heart to beat-- you begin to realize that you are the little bluebird to do what is needed!