Christian Science is teaching mankind what "right reasoning" means. It reveals God or Truth to men, and shows how all correct reasoning must be based on the truth about God and about spiritual existence, which existence is the manifestation of God or divine Mind. Referring to this important question on page 492 of "Science and Health with Key to the Scriptures" Mrs. Eddy writes: "For right reasoning there should be but one fact before the thought, namely, spiritual existence. In reality there is no other existence, since Life cannot be united to its un-likeness, mortality." Spiritual existence alone is real, since it is impossible that God, who is infinite Life, can have any connection with the seeming opposite of Life—mortality; and, therefore, all reasoning to be correct must have this fact before it.
Christian Science thus reveals what men have been searching for throughout the ages, namely, spiritual truth. Obviously, this truth can be known only as God, Truth, is known; and to know Truth has ever been the earnest desire of the conscientious philosopher and religionist alike. Examine whatever system of philosophy or religion one may, however, and it will be found that with the exception of the Christian religion, as established by Christ Jesus, one and all have dealt with existence as both material and spiritual. It may be that philosophy has endeavored to explain material phenomena in terms of the so-called human mind, even going so far as to look upon these phenomena as the objective state of the human mind; but what of the so-called human mind itself? Whence its origin? The fact is that human philosophy, when dealing with what it calls ideas, never touches the hem of the undivided garment of absolute Truth.
The Prophet of Nazareth was in no doubt on this subject. Christ Jesus' knowledge of God was absolute. This knowledge he tried to impart to his followers, proving the truth of what he taught them by miracles or "signs following," and characterizing the recognition of and obedience to Truth as worship, thereby uniting philosophy and religion. His declaration to the woman of Samaria was a final pronouncement. The woman who came to draw water from the well at Sychar was not a believer in the traditions of the Jews; but this did not prevent the Master pouring out the "living water" for her to drink. The truth which he revealed was for all. And the words which, since they were spoken to her, have echoed down the centuries, were these: "But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him. God is a Spirit: and they that worship him must worship him in spirit and in truth." Thus did Jesus affirm the nature of God to be Spirit and Truth, and declare that as such God must be known and worshiped by men.