The Emeritus Prior General of the Order of Saint Augustine, Father Miguel Ángel Orcasitas OSA, provides context for what may become the thirty-ninth Doctor of the Holy Church. It is a long process, spanning over 150 years, involving numerous ecclesial realities. This is its history, legacy, and influence. What does it mean to be a Doctor of the Church? In the Catholic Church’s calendar of saints, some are prominently designated as “Doctors of the Church.” The conditions for a