Mary Baker Eddy's love for the practice of Christian Science never wavered. She saw practical demonstration as utterly essential to the continuance and growth of Christian Science. Much of this article's emphasis, with its insistent moral integrity and unwillingness to settle for anything less than the divine Principle which had been revealed to her, will be familiar to anyone acquainted with Mrs. Eddy's writings. Similar ground had been traversed in the article "Faithcure" in Retrospection and Introspection and in "Message, April 19, 1899," in The First Church of Christ, Scientist, and Miscellany.
But it may be interesting to have nearly a final word from Mrs. Eddy on this subject, in the form of this article penned in her ninetieth year. The article was written in September 1910. It was first published in the Christian Science Sentinel, September 1, 1917.
The nature and position of mortal mind are the opposite of immortal Mind. The so-called mortal mind is belief and not understanding. Christian Science requires understanding instead of belief; it is based on a fixed eternal and divine Principle, wholly apart from mortal conjecture; and it must be understood, otherwise it cannot be correctly accepted and demonstrated.