Major religions are belief systems that guide the spiritual and moral lives of billions of people worldwide. The largest religions include Christianity, Islam, Hinduism, and Buddhism. Each of these religions has its own teachings, sacred texts, and practices, shaping the cultures and societies where they are followed. Christianity centers on the life and teachings of Jesus Christ, while Islam follows the teachings of the Quran as revealed to the prophet Muhammad. Hinduism is known for its diverse beliefs and practices, including the worship of multiple deities, and Buddhism focuses on the path to enlightenment through practices like meditation.