This book studies the nature and background of the Mexican Catholic faith experience, specifically its emphasis on popular religiosity and sacramental practice. Extensive interviews with Mexican Catholics are presented which demonstrate these emphases. The nature of Sixteenth-Century Spanish Catholicism and Pre-Columbian Nahuatl faith, as well as the current theology of Elizondo and Deck are studied to understand the characteristics and background of this faith experience. Finally, the Southern California youth movement "Jovenes Para Christo" is studied as an expression of this faith. The complete results of the interviews as well as "Jovenes Para Cristo" source documents are included as appendices.