This song really let's you know that you don't need anyody to make you happy in order for you to be happy you can be happy all by yourself, sometimes we need to stop focusing on trying to make others happy and always exclude yourself out of the happiness. Its all about you at the end of the day, you got yourself nobody else but yourself. In oder for you to know you, you have to know how to make yourself happy and not worry about anything or anybody else.