Nourishing activities are those that restore energy and depleting activities make you worse. Assume you are on the golf course and you begin to notice the depleting moments outweigh the nourishing moments. If you are leaving a golf course in a worse mood than when you arrived should you ask yourself should you be there in the first place. I know several people who gave up the game as they no longer were having fun and enjoying themselves.
It could be these people could not step back and recalibrate and realizing they were reacting rather than responding to elements of their game.
If you can’t manage your mental game well the lack of proper mental responsiveness may send you a negative spiral so why bother with the game?