Dedicated to the preservation and expansion of the traditional form of worship of the Catholic Church, especially in the Archdiocese of N.O., Louisiana.
Mysterium Fidei is dedicated to the preservation and expansion of the traditional form of worship of the Catholic Church, known variously as the "Latin Mass, the "Tridentine Rite" or the "Extraordinary Rite of Mass." Following the precepts set forth in the Holy Father's directives Summorum Pontificum and Universae Ecclesiae, Mysterium Fidei supports priests in training, parishes seeking to initiate a Latin Mass and catechetical projects for the furtherance of Catholic culture and doctrine.