Everyone has their own way of dealing with problems. For many people they choose to ignore it. This song is trying to say that it is possible to make a difference in the world no matter how small you are. After all change isn't going to come if everyone sits back and ignore everything that's going on in the world. Carrie is trying to say that you shouldn't let people tell you that you can't do anything to make a difference in someone's life. "The smallest thing can make all the difference", One small act of kindness can lead to an even bigger act of kindness. Also in the song, she says " For 10 cents a day you can save a life" Is that really too much to give when we have it better than other people. So get out there and make a difference!