Joyfulness is freeing others from unhappiness and being sincerely happy for them when they accomplish that. It is a mental state of great contentment and ease, not to be misunderstood with happiness, which is just a physical state of feeling good. We can start to develop joy for those who are closest to us: our family and friends. We expand it to those we know and like, then to those we know but dislike, and finally to those we do not even know. Ideally, our wish will be that all beings find joy.