Karma Yoga - The Ideal of Karma

In between the two assembled armies, Krishna spoke these words to Arjuna. He is supposed to be the ideal of Karma Yoga. And then he kept quiet. Then what happened? The tenth verse. Tama-waja-ri-shik-esha. Swami Vivekananda said, this is the ideal of Yoga. Eternal calm in the midst of intense action. In the midst of eternal calm, when the world is quiet and you are alone and all, mind doesn't become dull or sleepy. After this, 11th verse onwards, the teaching starts.