In the Catholic Church, a Postulator plays a crucial role in the canonization process. This individual is responsible for guiding a cause for sainthood through its various stages. Their task begins with gathering and presenting evidence of holiness concerning a deceased individual. This rigorous Church investigation assesses the candidate's life, virtues, and potential miracles. The Postulator meticulously compiles this evidence, preparing it for the various levels of review. Only once a recognized stage is reached, with substantial evidence presented and examined, can the process advance. The Postulator's work continues until the declaration by the Pope of the candidate's beatification or canonization, marking their official recognition as blessed or saint. Their success hinges on effectively demonstrating the evidence of holiness necessary to meet the stringent requirements of the Church.