In the following definition of "day" in Science and Health, Mrs. Eddy assures us of uninterrupted progress and continuous unfoldment of good (p. 584):
"The irradiance of Life; light, the spiritual idea of Truth and Love.
"'And the evening and the morning were the first day.' (Genesis i. 5.) The objects of time and sense disappear in the illumination of spiritual understanding, and Mind measures time according to the good that is unfolded. This unfolding is God's day, and 'there shall be no night there.'"