Arjuna was then a pupil of Drona. Once, he was taking food in the night. A lamp was burning to give him light. Suddenly a wind blew and the lamp went out. But Arjuna kept taking his food from his hand out of sheer habit. Then Arjuna thought that my hand knows the mouth by habit and I am able to eat the food even in darkness. Likewise I know the target even in night because of my previous practices. I will practice with my bows and arrows in the night. So thinking he went to the practice arena and started shooting the arrows. Hearing the bowstring in the night Guru Drona came to see what it was and was pleased with Arjuna and said to him that he would make him the best archer in the world. Surely the great ones work long and over time while others are sleeping to reach great heights. They steal a march over others while they are sleeping.