And God said: "Let there be light." And there was light. These words mark the first step in the creation of all life. The very genesis of light is tied to the nature and purpose of God--God as the author of light, as the pouring out of light, as light itself. Believers in the three Abrahamic faiths have always understood God as light. The Hebrew scriptures celebrate this divine illumination: "Yahweh is my light and my salvation . . ." (Psalm 27). Christians, too, proclaim that "God is light, and in him is no darkness at all" (1 John 1.5). For Muslims, "Allah is the Light of the heavens and the earth" (Sura 24.35). And theologians and mystics of all ages have explored the revelation and meaning of divine light. This volume explores the theme of divine illumination in the traditions of Judaism, Christianity, and Islam. Theologians, physicians, and philosophers share their wisdom and understanding of the uncreated light that God is, the created physical light of the world, and the relationship of enlightenment to human reason and ethics. Contributors: Philip Amerson Jamal Badawi Kimberley Curnyn Mark A. Dennis, Jr. Souleymane Bachir Diagne Wendy Doniger Peter Knobel Larry Murphy William Murphy Yohanan Petrovsky-Shtern Morton Schapiro Jan van Eys Kenneth L. Vaux Sara Anson Vaux Richard Vaux Julie Windsor Mitchell K.K. Yeo

From its inception in Greek antiquity, the science of optics was aimed primarily at explaining sight and accounting for why things look as they do. By the end of the seventeenth century, however, the analytic focus of optics had shifted to light: its fundamental properties and such physical behaviors as reflection, refraction, and diffraction. This dramatic shift—which A. Mark Smith characterizes as the “Keplerian turn”—lies at the heart of this fascinating and pioneering study. Breaking from previous scholarship that sees Johannes Kepler as the culmination of a long-evolving optical tradition that traced back to Greek antiquity via the Muslim Middle Ages, Smith presents Kepler instead as marking a rupture with this tradition, arguing that his theory of retinal imaging, which was published in 1604, was instrumental in prompting the turn from sight to light. Kepler’s new theory of sight, Smith reveals, thus takes on true historical significance: by treating the eye as a mere light-focusing device rather than an image-producing instrument—as traditionally understood—Kepler’s account of retinal imaging helped spur the shift in analytic focus that eventually led to modern optics. A sweeping survey, From Sight to Light is poised to become the standard reference for historians of optics as well as those interested more broadly in the history of science, the history of art, and cultural and intellectual history.

This book discusses light-based science, emphasizing its pervasive influence in science, technology, policy, and education. A wide range of contributors offers a comprehensive study of the tremendous, and indeed foundational, contributions of Ibn al Haytham, a scholar from the medieval period. The analysis then moves into the future development of light-based technology. Written as a multi-disciplinary reference book by leading scholars in the history of science and /or photonics, it covers Ibn al Haytham’s optics, LED lighting for sustainable development, global and atomic-scale time with new light sources, advanced technology, and vision science. Cutting-edge optical technologies and their global impact is addressed in detail, and the later chapters also explore challenges with renewable energy, the global impact of photonics, and optical and photonic education technology. Practical examples and illustrations are provided throughout the text.

Eschatology and ethics are joined at the hip, says Michael Allen, and both need theocentric reorientation. In Grounded in Heaven Allen retrieves the traditional concept of the beatific vision and seeks to bring Christ back into the heart of our theology and our lives on earth. Responding to the earthly-mindedness of much recent theology, Allen places his focus on God and the heavenly future while also appreciating ways in which the Reformed tradition provides a unique angle on broadly catholic concerns. Reaching back to classical ethics as well as its reformation by Calvin and other Reformed theologians, Grounded in Heaven offers a distinctly Protestant account of the ascetical calling to be heavenly-minded and to deny one’s self.

The renowned Christian preacher and New York Times bestselling author of An Altar in the World recounts her moving discoveries of finding the sacred in unexpected places while teaching world religions to undergraduates in Baptist-saturated rural Georgia, revealing how God delights in confounding our expectations. Christians are taught that God is everywhere--a tenet that is central to Barbara Brown Taylor's life and faith. In Holy Envy, she continues her spiritual journey, contemplating the myriad ways she encountered God while exploring other faiths with her students in the classroom, and on field trips to diverse places of worship. Both she and her students ponder how the knowledge and insights they have gained raise important questions about belief, and explore how different practices relate to their own faith. Inspired by this intellectual and spiritual quest, Barbara turns once again to the Bible for guidance, to see what secrets lay buried there. Throughout Holy Envy, Barbara weaves together stories from her classroom with reflections on how her own spiritual journey has been challenged and renewed by connecting with people of other traditions--and by meeting God in them. At the heart of her odyssey is her trust that it is God who pushes her beyond her comfortable boundaries and calls us to "disown" our privatised versions of the divine--a change that ultimately deepens her relationship with both the world and with God, and ours.

In this long awaited follow-up to the best-selling An Altar in the World, Barbara Brown Taylor explores ‘the treasures of darkness’ that the Bible speaks about. What can we learn about the ways of God when we cannot see the way ahead, are lost, alone, frightened, not in control or when the world around us seems to have descended into darkness?

There is perhaps no greater constant in religious intuition and experience than the presence of light. In spiritual traditions East and West, light is not only ubiquitous but something that assumes strikingly similar forms in altogether different historical and cultural settings. This study examines light as an aspect of religiously valued experiences and its entailments for mystical theology, philosophy, politics, and religious art. The essays in this volume make an important contribution to religious studies by proposing that it is misleading to conceive of religious experience in terms of an irreconcilable dichotomy between universality and cultural construction. An esteemed group of contributors, representing the study of Asian and Western religious traditions from a range of disciplinary perspectives, suggests that attention to various forms of divine radiance shows that there is indeed a range of principles that, if not universal, are nevertheless very widely occurring and amenable to fruitful comparative inquiry. What results is a work of enormous scope, demonstrating compelling cross-connections that will be of value to scholars of comparative religions, mysticism, and the relationship between art and the sacred. Contributors: * Catherine B. Asher * Raoul Birnbaum * Sarah Iles Johnston * Matthew T. Kapstein * Andrew Louth * Paul E. Muller-Ortega * Elliot R. Wolfson * Mimi Hall Yiengpruksawan * Hossein Ziai