The "Mother Cathedral" typically refers to a principal church within a diocese, serving as the central place of worship and the seat of a bishop. It is often characterized by its architectural grandeur and historical significance, representing the heart of the local Christian community. Many cities have their own Mother Cathedrals, such as the Cathedral of Notre-Dame in Paris or the St. Patrick's Cathedral in New York City. These cathedrals often host important religious ceremonies and events, making them vital to the spiritual life of their respective communities.