Basically Miley is telling herself, all Smileys, and the whole world that you can be who ever you want to be as long as you are willing to give it a try. You shouldn't listen to anyone that tells you what you can and can't do. Miley wants everyone to follow their own heart, she is being a supporter of love, hobbies, and interest. As long as you are being yourself and following you heart all can be accomplished. Anybody who tries to keep you down or hold you back are the ones that should be tossed aside, not your life long dreams. A supportive of unique and love lyrics like this should be listened and remembered, as an encouragement to ourselves.