It's a story about young people growing up, trying to take charge of their lives, dealing with obstacles and finding love. Young people have being doing those things since Og the caveman and will be doing them for millenia more.
I think it means a lot of people talk the talk and don't do anything about it. It is saying that we should be spending our time doing more and not so much talking. Spend more time doing than talking. Actions speak louder than words.