All of your meanings are right but my meaning is you need to help the earth or mother nature from global warming and pollution "just one hand can heal another" means that you have to help someone or heal someone even though you are just a one human but you can still save the earth and everybody can join you "and love isn't love till u give it away" means love just isn't love until you gave it to someone that you really love "something to make a change" means that if you do something useful or helpful to save the mother earth the future of the earth will be better if we start thinking ideas we could do to save our home I have a reminder to all of you who reads this: Plzzz help the mother nature our last planet to live in before everything is gone.