If you don't do what's best for your body, you're the one who comes up on the short end.
I'm compelled to paint nearly every day. I just felt like making a painting, went out and bought paints and a canvas. Now it fulfills me creatively when I'm not doing music: it's something you can do by yourself and it's totally yours. It's a great adjunct to my life.
Without the element of uncertainty, the bringing off of even, the greatest business triumph would be dull, routine, and eminently unsatisfying.