3. But far more expressive and more full is the third and remaining image, the image of the text. Christ is the Head; the Church is the Body; each individual is a member, a limb, of the whole. This image supplies what was deficient in the last, the idea of mobility, vigorous life, diffused through the whole from one central, guiding, inspiring, vivifying power, the idea of an internal principle of growth, the idea of infinite variety of conditions, functions, needs, in the several parts, and combined with this the idea of the closest sympathy and interdependency, so that each is sensitive to the action of the other, and each necessary to the well-being of the whole.