But first, let's talk about playfulness and transgression. It is a mistake to think that play has no rules. Play does, it is just that the players get to make up and change the rules. They even break them. Getting to make, change, and break rules is agentic and thus conducive to a playful mindset.
Elsewhere I’ve written about the importance of playfulness; how it is a mindset in which one is inclined to see situations and activities as containing the possibilities for agency, wonder, and delight (dimensions of experience that enhance learning).