Early in every golfer's lifelong tussle with the game he learns that there's a vast difference between 1) keeping your head down so that you have your eye on the ball at impact and 2) keeping your head down so that you finish your hitting action properly. "Staying down"—maintaining the proper head and body position during that moment after you have made contact is a tremendous factor in playing consistently accurate shots.
The simplest way to emphasize the importance of staying down is to remind you of what happens when you don't. When a golfer bobs his head up too quickly, he jerks up his hips and the upper part of his body along with his head. As a result he generally pulls the shot to the left. This doesn't mean that you should exaggerate this anchoring of the head and body as you hit through the ball. If you do, you cannot move into the shot and finish it the way you should. Good golf, like all things, comes from striking the happy medium. Correcting one extreme by going to the other is no correction at all. Practice is the best (and only sure) way of gaining the feeling of when you are staying down long enough but not too long over your shots.
from JULIUS BOROS, Mid Pines Club, Southern Pines, N.C.