I found something by the English philosopher Alan Watts later that was absolutely true for me:

"Imagine, too, if you were a bus driver. Bus driver is ordinarily, ordinarily considered an absolutely harassed person. You've got to watch out for all the laws, all the competing traffic. The cops, the people coming on board giving their fares and he has to give them change and if he has it in his head that this is work, it will be hell. But let's suppose he has a different thing in his head.

Supposing that he has the idea that moving this enormous conveyance through complicated traffic. It is a very, very subtle game, and he has the same feeling about it that you might have if you were playing the guitar or dancing. And so he goes through that traffic avoiding this, and avoiding that and taking the affairs like this and he makes a music of the whole thing. Well he's not going to be tired out at the end of the day. He's going to be full of energy when he gets through his job."