Mrs. Eddy's discovery of Christian Science elevated the word "metaphysics" to a far higher and purer meaning than it had enjoyed before. Her use of the term to describe a healing, redemptive system based on the allness of God lifted it above speculative philosophy and above healing methods based on the human mind.
In the Christian Science textbook, Mrs. Eddy writes: "Metaphysics is above physics, and matter does not enter into metaphysical premises or conclusions. The categories of metaphysics rest on one basis, the divine Mind. Metaphysics resolves things into thoughts, and exchanges the objects of sense for the ideas of Soul."Science and Health, p. 269;
A metaphysician, then, is one who is beholding the spiritual ideas of Soul, the spiritual facts of being as they exist in divine Science, and is applying these ideas to specific problems to solve them. Christian metaphysics shows that there is one Mind only, infinite and perfect, and one infinite manifestation of Mind: spiritual man, the image of Mind. Matter is understood as a misstatement of Mind, for the nature and substance of infinite Mind must be Spirit. Man and the universe are composed of spiritual ideas, expressing the one Mind. From Mind, God, emanate all intelligence, wisdom, and discernment. All metaphysical premises and conclusions are based on the fact of one infinite, perfect Mind and its perfect expression, man.
