By Archbishop Carlo Maria Viganò, LifeSiteNews - Archbishop Carlo Maria Viganò: The liturgical question is of great importance because the sacred action of the Mass contains the doctrine, morality, spirituality, and discipline of the ecclesial body that celebrates the liturgy. Thus, just as the Catholic Mass is a perfect and coherent expression of the Catholic Magisterium, the reformed liturgy [the Novus Ordo] is an expression of conciliar deviations; indeed, it reveals and confirms its heterodox essence without the ambiguities and verbiage of the Second Vatican Council texts.