At the time Mrs. Eddy wrote the Christian Science textbook, Science and Health, material medicine and the general public had not yet begun to give serious thought to the direct control the human mind has over the human body. But Mrs. Eddy was already seeing this—and devoted a considerable amount of attention to it in Science and Health.
By the time I began studying her writings approximately a century later, the concept that one's thinking governs one's body was no longer thought to be such a radical idea. So as I read along I wasn't particularly startled or impressed by this. I'd heard it before. Furthermore, I was already into the study of Christian Science deeply enough to understand that Christian Science healing is the result of Christian redemption and regeneration from false, matter-based thinking. Christ Jesus said, "Ye shall know the truth, and the truth shall make you free."John 8:32.
I trusted Mrs. Eddy's wisdom enough to know that there must be some good reason for the relationship of mind and body to be considered so frequently in the textbook—to clarify it, perhaps, for the thought of her day and for those approaching the study of Christian Science from different perspectives. So I didn't feel critical, but with the typical impudence of the less experienced metaphysician who thinks she knows more than she does, I saw no reason at all not to skip lightly over such relative human considerations to see that in reality the divine Mind, God, governs all and that there is no other Mind.