Keep the sense always active
Deepak was very fond of playing a video game. Once he went to a video game parlour with his friends. His favourite game was Batman. In this game, one had to destroy the enemies through Batman. Within some minutes he was engrossed in the game. After crossing three gates of the enemy fort Batman was caught in a trouble. He was fired upon from two sides. Deepak could not manage how to save Batman. As Batman was not hurt yet, his friends told Deepak to save Batman by lowering him. Deepak was so engrossed and enthusiastic that in saving Batman from firing, he himself fell down on the floor. Actually, he was taking himself to be Batman. All his friends started laughing at him.
Moral: Keep the sense always active to differentiate between the real and the unreal.