In Catholic teaching, intercession is the act of a saint praying to God on behalf of someone else. This concept is central to the canonization process. Before a person can be declared a saint, a lengthy Church investigation takes place. This process gathers evidence of holiness, including miracles attributed to the candidate's intercession. If the investigation finds sufficient evidence, a recognized stage is reached. This involves rigorous examination of testimonies and documentation related to the candidate’s life and alleged miracles. Only after this thorough process, involving several stages of review, and demonstrating clear evidence of holiness and intercession, comes the declaration by the Pope confirming the individual's sainthood.