THESIS ABSTRACT The life of Catholic reformer Jacques Lefèvre d’Étaples, 1455- 1536, spanned the threshold between Medieval and Renaissance eras. Like other humanists, Lefèvre synthesized philosophical, theological and scientific theories and practices — of such is his unpublished treatise De Magia naturali, On Natural Magic. I elucidate Lefèvre’s focus on universal mystical metaphors of divine union, in order to offer a simpler view into the evolution of his writings. Engaging historic-intellectual background in critical analysis of Book II, I address the (...) conflicting political, religious, and academic opinions of natural magic, demonstrating that current Academia is poised to expand the historical, “theoretical” treatment of natural magic to engage it as a phenomenological, “practical” human experience. In De Magia naturali Book II, Lefèvre decloaks mythology, philosophy, astrology, literature and religion to a scientific theory, practice and experience of number as Idea. He reveals how the limit of metaphorical imagery is duality, the binary Coincidence of Opposites, symbolized by the number 2. The magic in Lefèvre’s number mysticism is human experience of numerical ascension from man to God, achieved through the number 3, the love-nexus re-uniting 2 into One, duality into unity. Renaissance humanists conceived of this prisca theologia, pristine or ancient theology, as embodied in the Christian Trinity through the Spirit of Christ. Current Academia is responsible to teach this wisdom tradition from a multicultural, interdisciplinary worldview, as I posit the humanists intended. (shrink)