Charles Fillmore was an American New Thought writer, teacher, and co-founder of the Unity movement, one of the most influential religious and metaphysical movements to emerge from the nineteenth-century mind-cure and New Thought tradition. Born in 1854, Fillmore developed a system of spiritual interpretation that joined Christianity, healing, affirmative prayer, metaphysical thought, and the study of consciousness. With Myrtle Fillmore, he helped establish Unity as a major centre for practical Christianity, spiritual healing, and affirmative religious teaching.Fillmore's writings interpret the Bible as a guide to inner transformation as well as a sacred text, reading names, places, events, and images as symbols of spiritual states and divine principles. Metaphysical Bible Dictionary is one of his most important reference works, gathering interpretations of biblical terms through the lens of Unity and New Thought. His work remains central for readers interested in metaphysical Christianity, spiritual Bible interpretation, New Thought, affirmative prayer, divine healing, and the religious history of modern American spirituality.