A good golf swing looks entirely effortless, but it really isn't.
It is as violent as any boxer's knock-out punch.
The difference is control.
The professionals learn how to control and maintain a technique which allows them to put 100% of their energy into connecting with the ball.
You don't have to be at 100% throughout the swing, just at impact.
See how to prepare your swing, address the ball and follow through with your shot.