Family: This can symbolize happiness in that with family we have people that care for us. They are there for us in time of need and we are there for them. For most people this is the easiest for of happiness you can find
Enjoying the simple things of life: Sometimes we have to stop and smell the roses because if we just keep going eventually we will stop and have nothing to show for it. The idea of finding happiness in the simplest things is in our nature. It can be a great sense of joy for people to just relax and enjoy nature.
Exploration: Seeing the world and experiencing now things is one way many people can find happiness. Getting over the hurdle or climbing a mountain to get to your goals or the proverbial peak is what this symbolizes.
Expressing yourself: Music is the greatest example of expression one can think of. It is a way to show your thoughts and feelings. Music can be one of the happiest things to make for many people and a way to spread that happiness to others.