Following from its charism, the fraternity's mission is twofold: to sanctify each priest through the exercise of his priestly function, and to deploy these priests to parishes. As such, they are to celebrate the sacraments, catechise, preach retreats, organize pilgrimages, and generally provide a full sacramental and cultural life for lay Catholics who are likewise drawn to the rituals of the 1962 missal. In order to help complete its mission, the fraternity has built its own seminaries with the goal of forming men to serve the fraternity.