The discipline of illumination through work is called KARMA YOGA in sanskrit. It is the yoga of dedicated action that helps us to know more about the world and to act properly. KARMA YOGA is the most important discipline from the common person's point of view because we are all actively engaged in our lives.
Sri Krishna says : " No one can keep quiet without working even for a moment. Your existence is impossible if you do not work. Therefore, O Arjuna, learn the secret of work. By knowing the secret of work, you transcend the limitation of work".