JL;DR SUMMARY In "Appreciating Aggada: The Andalusian Tradition and Rav Kook's Ein Ayah", Avner Yeshurun explores the Aggada, a genre of Talmudic literature that incorporates non-legalistic and narrative teachings. A way out west there was a fella, fella I want to tell you about, fella by the name of Jeff Lebowski.