Religions are organized systems of beliefs, practices, and values that often involve the worship of a higher power or deity. They provide followers with a sense of purpose, community, and moral guidance. Major world religions include Christianity, Islam, Hinduism, and Buddhism, each with its own unique teachings, rituals, and traditions. Religions often address fundamental questions about existence, the nature of the universe, and what happens after death. They can influence cultures, laws, and social norms, shaping the way people live and interact with one another. Many religions also promote compassion, charity, and ethical behavior among their adherents.