Example of Play is beautiful. It might be a game, but it's not one that you can play; Jared doesn't even offer a ruleset, and it could be that one isn't even possible.
Only the sea can play this game.
That doesn't mean we don't get anything out of reading its example of play—far from it. Just as the people the sea plays its game toward benefit from their relation with it, we as an audience benefit from some sort of yearning, suspended beauty in this example of play.
It's gorgeously written: evocative, and reflective of stars.