Almost 500 years ago, a Mexica survivor of the conquista was on his way to catechism lessons just outside present-day Mexico City. He experienced a holy presence on the hill of Tepeyac that changed the hermeneutic of the dignity of the poor forever. This book is about Our Lady of Guadalupe under her popular title “Santa María Tonantzin Guadalupe.” It centers on her indigenous and feminine identity as the “Preaching Woman.” She and the people she animates, the Hispanic-Latino community, are “icons” of the presence of the Holy Trinity. As Sacrament of the Holy Spirit and bearer of the Sacramental Word, she enables the pueblo, the people of God, to exercise their baptismal ministry as holy preachers.