Between Active Matter and Letters: Kabbalah, Natural Knowledge, and Jewish How-To Books in Early Modern East-Central Europe

Abstract This essay focuses on Jewish practical kabbalistic books of recipes that were produced in early modern East-Central Europe. These handwritten sources document the Jewish engagement with practical forms of expertise, which were informed by the theoretical foundations of kabbalistic knowledge. Through two case studies, the article highlights Jewish vernacular ideas about nature and matter, and the techniques used to transform these ideas into practical things during the early modern period. It also explores the phenomenon of recording these ideas and methods in the form of practical kabbalistic books of recipes, which serve as a prime example of practical episteme. In so doing, the article sheds light on the significance of kabbalistic theosophy and practical kabbalistic traditions, particularly those developed in East-Central Europe, in the broader history of Western European knowledge production.