Catholicism is a major branch of Christianity, with over a billion followers worldwide. It is characterized by its belief in the authority of the Pope, who is considered the spiritual leader and representative of Christ on Earth. The faith emphasizes the importance of the sacraments, such as baptism and communion, as means of receiving God's grace. The teachings of Catholicism are based on the Bible and the traditions of the Church. Key beliefs include the existence of one God, the divinity of Jesus Christ, and the importance of living a moral life. Catholics also engage in practices like prayer, attending Mass, and participating in community service.