The Canonization Mass is the final, public liturgical act in the Catholic Church's process of declaring a person a saint. It's a recognized stage, culminating a lengthy Church investigation into the candidate's life. This investigation rigorously gathers evidence of holiness, miracles attributed to the candidate's intercession, and scrutinizes their life for virtue and fidelity to the faith. After extensive review by theological experts and lengthy deliberations, a positive conclusion leads to a declaration by the Pope, formally recognizing the individual as a saint. The Canonization Mass publicly proclaims this declaration to the Church, and the person is then officially venerated throughout the Catholic world.