I’m not sure I have much to say about the fourth and final part of Thus Spoke Zarathustra, as much of it seemed to be a restatement and summary of what came before. It was certainly the funniest of the four parts by far, and there’s a reason for that: as Zarathustra comes to accept the eternal recurrence and inches closer to ultimate enlightenment, he begins to truly live his philosophy of laughing at and making a mockery of the world. He is willing, finally, to laugh at himself.
Indeed, the latter half of Part Four unfolds as a drunken celebration in his cave along with the higher men who all represent steps towards the Overman. Notably, a priest is in the group, and Zarathustra goes so far as to explicitly endorse spiritual ritual and observance for therapeutic and social reasons.
Only about 250 pages left to go in The Portable Nietzsche.