I suppose most of us have wondered at times, "Why does man exist? What's his purpose?" Christian Science provides an authoritative, Bible-based answer, making it clear that man exists for one primary purpose. In simple terms, the purpose of man is to serve as the manifestation, or evidence, of God's nature. The man of God's creating, as His likeness, reflects all that belongs to God, and includes nothing else. God expresses forever His infinite self-completeness in man.
In Miscellaneous Writings Mary Baker Eddy writes: "The grand verities of Science will sift the chaff from the wheat, until it is clear to human comprehension that man was, and is, God's perfect likeness, that reflects all whereby we can know God.... Man's origin and existence being in Him, man is the ultimatum of perfection, and by no means the medium of imperfection.... If the great cause is perfect, its effect is perfect also; and cause and effect in Science are immutable and immortal." Mis., p. 79.
No one can reasonably doubt God's own perfection. But perfect man! Why can we claim that man's perfection is a scientific fact when the physical evidence contradicts this assertion? Because, as the Science of Christ shows, the man of God's creating, as the likeness of Spirit, must be entirely spiritual; despite contrary appearances, he is not embodied in matter. So-called physical man is a misrepresentation of God's man. This can be proved through spiritual healing when one understands that man exists perpetually as the unchanging expression of God's perfect being.