"A woman, whom I cured of consumption, always breathed with great difficulty when the wind was from the east. I sat silently by her side a few moments. Her breath came gently. The inspirations were deep and natural. I then requested her to look at the weather-vane. She looked and saw that it pointed due east. The wind had not changed, but her thought of it had and so her difficulty in breathing had gone. The wind had not produced the difficulty. My metaphysical treatment changed the action of her belief on the lungs, and she never suffered again from east winds, but was restored to health."

Science and Health by Mary Baker Eddy, page 184