Spiritual inspiration is the heavenly characteristic which changes the standpoint of thought from the material to the spiritual. This change of standpoint is necessary in order to understand and demonstrate Christian Science. The truths contained in this Science must be alive to us, for they are living truths, expressing the presence and power of a living God. Life is God, and this Life is the Life of man.
A mortal takes in the evidence of the material world through the material senses, but the immortal or spiritual man is conscious of the spiritual universe, which becomes understandable to mankind through the senses of Soul. The function of breathing, for instance, pertains to a material sense of life, but the function of spiritual inspiration is to reveal the Life that is God and the evidence of Mind, or Spirit.
Speaking of John the Revelator, Mary Baker Eddy writes in "Science and Health with Key to the Scriptures" (p. 573): "The Revelator was on our plane of existence, while yet beholding what the eye cannot see,—that which is invisible to the uninspired thought. This testimony of Holy Writ sustains the fact in Science, that the heavens and earth to one human consciousness, that consciousness which God bestows, are spiritual, while to another, the unillumined human mind, the vision is material."