Squash

The pursuit of the ball at all costs. The joy in the that moment when you know exactly where to put the ball so your opponent can’t get to it. The frustration of a close shot that didn’t quite make it. The challenge of playing against someone better than you. The sound of your breathing. The feeling that your heart is going to jump out of your chest. The pressure of the wall as your shoulder slams into it. The visceral yell you make as you try for a tough return shot. 

The shared joy between opponents when one of you makes that impossibly perfect shot.

The sense of satsifaction as you improve little by little.