I play a racquet sport for recreation.
Often now the opposing team goes into conference when they see I am one of their opponents. Sometimes I wonder have they figured out how to beat me.
Just having that state of mind is not good for my mind. I try to play for they joy of it and am often laughing during my sweat soaked exertions.
I am reminded of the American football quarterback who wears a rubber band on his wrist. After each football play, he snaps the rubber band to remind himself that that play is over and now he has less than ten seconds to plan for the present.
The same is true for us:
Every moment is fresh. It is our mind that attempts to make it otherwise.