You are in front of your brother, but your mind is on many other things, so you don’t really see your brother. Maybe he is having some trouble, but you don’t see it, not even when you share the same room. But mindfulness brings you there, to the present, and then you see. Train yourself all day long to bring your mind to your body and to be present with your food, your friends, your work, everything, because the more you concentrate, the deeper you will see.