An often used approach is to think of and feel your entire body. You start with the pinky toe on one foot. You just focus everything on the toe and try to "feel

An often used approach is to think of and feel your entire body. You start with the pinky toe on one foot. You just focus everything on the toe and try to "feel it". When you believe you can eel it you move on to the next toe, eventually to the foot, the lower leg and so fourth. In this way you move through your entire body in detail just concentrating on what you can feel. It usually works for me when my mind is overflowing with thoughts and I can't sleep.