Jon Sweeney, a self-described “evolved Protestant” and noted religious writer, has long been fascinated by the Catholic Church. However, it wasn’t until he was a young missionary in the Philippines that he truly began to understand the Church’s traditions, mysteries, and religious beliefs and its hold on those who follow the tradition. As he explains, Catholic spirituality is all about responding to the fundamental mystery of Jesus, the incarnation, and what it all meant in the beginning as well...