I believe that happiness happens within oneself. You are responsible for your happiness; therefore, you should not rely on outer circumstances or other people to achieve happiness. You should simply let the outer factors like good friends, family, a job that you like, a relationship, wealth, and health enhance your life experiences. If you let your happiness depend only on outer factors, you will not be able to reach sustainable happiness. There is a difference between long-term happiness and short-term happiness that could also be called pleasure.