After demonstrating the physics of what makes the ball go airborne, and why one cannot “lift” the ball successfully, I have my students do the “eyes closed drill”. First with practice swings, take the address position then close the eyes. At first make a backswing only about 2 feet back, then brush the grass on the way to the finishing position of a full swing. Gradually make a bigger backswing until a full swing is made, but if a swing fails to brush the grass, go back to shorter swings and continue. Finally, try this with a live ball–but this is difficult to do if one focuses on the ball instead of the balanced swing motion as a whole.