The medieval mystic Julian of Norwich (1342–after 1416) is the first known woman to author a book in the English language, recognized today for her strikingly optimistic claim that “all shall be well.” Her visionary text Revelations of Divine Love is the product of many years of contemplation, written and revised after a life-changing event of near-fatal illness and divine revelation. Hannah Lucas explores the entanglement of illness and revelation in Julian’s writings, illuminating the unexpected commonalities between the medical and the mystical and their significance for philosophies of health. Framed by an original application of post-Heideggerian philosophy, Impossible Recovery offers a vivid new interpretation of the medieval mystic as crafting a proto-phenomenological theology of well-being. Lucas’s careful readings pay close attention to Julian’s mystical language and poetics, revealing the surprising resonances of her writings with modern and postmodern thought. Refracted through Julian’s Revelations , this book advances a powerful existential query about the possibilities of recovery—of well-being, and of medieval history.