You are the racer, and your body is the machine you've been given. There's a team of mechanics servicing it. Your job is to push it to the test, while their job is to listen to your feedback and repair and upgrade it. Push the limits, or you won’t grow. But don’t crash it, or you're done. Also, be very perspicatious — if you don't give real feedback, you'll end up just driving a taxi.