The Varieties of Religious Experience: A Study in Human Nature
by William James

Lecture 9: Conversion

To be converted, to be regenerated, to receive grace, to experience religion, to gain an assurance, are so many phrases which denote the process, gradual or sudden, by which a self hitherto divided, and consciously wrong inferior and unhappy, becomes unified and consciously right superior and happy, in consequence of its firmer hold upon religious realities. This at least is what conversion signifies in general terms, whether or not we believe that a direct divine operation is needed to bring such a moral change about.