I wouldn't call this art
You'd be wrong then.
It's pretty zen, really.
You have a very low bar for calling something "zen". I'm good at flipping bottles of mustard and such behind my back without dropping them. No point really, just fun. Zen?
When you are hungry, eat. When you are tired, sleep. This is exactly Zen.
It's mastery. Doing something because it's a challenge you find interesting, not because there's something external to be gained. It's pretty zen, really.