On Life

I hope there is a universal theme for everyone as we live our lives and pursue the things we want. Whether it is something as simple as wanting to experience what the world has to offer or to be the best you can be. Maybe you made a promise to yourself to be somebody important or to possess a successful career. Is the universal theme the pursuit happiness? I want to know if there is a universal underlying theme in all of our lives and if there is what is it?