This document provides an introduction to world religions and belief systems. It defines key concepts like worldview, belief systems, religion, and spirituality. A worldview is the basic way a person interprets reality based on their culture and upbringing. Belief systems shape one's worldview and are influenced by religion. Religions have common elements like belief in supernatural powers, sacred texts or places, rituals, concepts of sin and salvation. The document differentiates religion from spirituality and provides examples of different types of belief systems like theism, pantheism and naturalism.