He has a method that likens the musician to an athlete, so I do physical exercises designed to keep a musician in shape in order to perform the function, which is to play music.
But at the same time you can't assume that making a difference 20 years ago is going to allow you to sort of live on the laurels of those victories for the rest of your life.
Everyone has challenges and lessons to learn - we wouldn't be who we are without them.