The Canons Regular of the Immaculate Conception is a congregation of priests and brothers, living in common according to the Rule of Saint Augustine. They live a spirituality founded on Christ and His saving mystery celebrated in the richness of the Sacred Liturgy. In the Brief, “Salutare Maxime,” of February 11, 1913, Pope St. Pius X approved definitively the Canons Regular of the Immaculate Conception and he eagerly recommended the religious and community life to the parochial clergy. The perfection and sanctification of the clergy by means of common life, liturgical prayer and apostolic penance was the constant endeavor and undivided aim of Dom Adrien Gréa, the Founder of the Canons Regular of the Immaculate Conception.