Catholic faith refers to the religious beliefs and practices associated with the Roman Catholic Church, which is the largest Christian denomination in the world. This faith is centered around the teachings of Jesus Christ and includes essential doctrines such as the sacraments, the authority of the Pope, and the importance of tradition alongside Scripture. In the context of American interest in New Mexico and the impact of the Mexican-American War, Catholic faith played a significant role in shaping cultural identities and societal structures.