G. K. Chesterton turns conversion into a modern mystery: why does Catholicism still arrive like a shock, a challenge, even a new religion? In these opening chapters, he argues that the Church cannot be explained by one temperament or one emotional crisis, because converts come by every route imaginable—through intellect, travel, suffering, loneliness, disgust, or sheer admiration for truth. Chesterton insists that this diversity points to something objective in Catholicism itself. Though ancient, it is often experienced as startlingly fresh, especially by the young, and far more alive than the inherited Protestantism or secular progress that surrounds it. He contrasts a faith chosen with conviction against beliefs kept only by habit, while preparing to tell his own story as one example of a wider movement. He also answers anti-Catholic fears with wit and clarity, from suspicions about priests and Jesuits to attacks by modern critics and biblical skeptics. In the end, he presents the Catholic Church as the defender of reason, tradition, and spiritual realism, and the confessional as one of its most surprising signs of mercy. This edition has been fully restored with modern typesetting, custom cover design.