I’ve spent a lot of time on the course talking about golf and the strange things that happen. I’m amazed by how the brain and body connect to produce an outcome. One day, I was standing with Stefan Ackerie, who was showing me something he was working on. The only word I had was “wow.” It was a long and fluid motion, which I wasn’t used to seeing from him. Then he put a ball on a tee and made a swing—it was the swing I remembered. I said, “That looked nothing like what you just showed me in your practice swing.” We took a video, and sure enough, it was like looking at two different people. I wondered why something like this would happen. Something in the mind was stopping the flow of the swing. I went to my bag and grabbed a few plastic balls, teed one up, and the practice swing returned while hitting the plastic ball. There is a reason it’s called a golf swing, not a golf hit. To this day, my most effective tool for helping me feel the swing and make a fluid motion, transferring power to the ball, is practicing with plastic balls. I love how, when you get it right, it feels effortless and like there isn’t a ball even there.