Formed associations of ideas and habits are usually factors of retardation in such changes of equilibrium. New information, however acquired, plays an accelerating part in the changes; and the slow mutation of our instincts and propensities, under the “unimaginable touch of time” has an enormous influence. Moreover, all these influences may work subconsciously or half unconsciously.(99) And when you get a Subject in whom the subconscious life—of which I must speak more fully soon—is largely developed, and in whom motives habitually ripen in silence, you get a case of which you can never give a full account, and in which, both to the Subject and the onlookers, there may appear an element of marvel. Emotional occasions, especially violent ones, are extremely potent in precipitating mental rearrangements. The sudden and explosive ways in which love, jealousy, guilt, fear, remorse, or anger can seize upon one are known to everybody.(100) Hope, happiness, security, resolve, emotions characteristic of conversion, can be equally explosive. And emotions that come in this explosive way seldom leave things as they found them. In his recent work on the Psychology of Religion, Professor Starbuck of California has shown by a statistical inquiry how closely parallel in its manifestations the ordinary “conversion” which occurs in young people brought up in evangelical circles is to that growth into a larger spiritual life which is a normal phase of adolescence in every class of human beings. The age is the same, falling usually between fourteen and seventeen. The symptoms are the same,—sense of incompleteness and imperfection; brooding, depression, morbid introspection, and sense of sin; anxiety about the hereafter; distress over doubts, and the like. And the result is the same,—a happy relief and objectivity, as the confidence in self gets greater through the adjustment of the faculties to the wider outlook. In spontaneous religious awakening, apart from revivalistic examples, and in the ordinary storm and stress and moulting‐time of adolescence, we also may meet with mystical experiences, astonishing the subjects by their suddenness, just as in revivalistic conversion. The analogy, in fact, is complete; and Starbuck’s conclusion as to these ordinary youthful conversions would seem to be the only sound one: Conversion is in its essence a normal adolescent phenomenon, incidental to the passage from the child’s small universe to the wider intellectual and spiritual life of maturity.