Religion is a system of beliefs about sacred or spiritual matters, usually including ideas about how the universe was created, why we exist, and how we should live. Most religions involve faith in God or gods, though some focus on spiritual principles rather than deities.

Religion typically includes several elements: beliefs about the divine or sacred, stories that explain important truths, moral teachings about right and wrong, rituals and ceremonies, and communities of people who share these beliefs. Christians gather in churches and follow the teachings of Jesus, Muslims pray five times daily and follow the Quran, Jews observe the Sabbath and study the Torah, Buddhists meditate and follow the path taught by the Buddha, and Hindus worship many manifestations of the divine and believe in reincarnation.

Throughout history, religion has shaped how people understand their purpose, make moral decisions, cope with loss, celebrate joys, and find meaning in life. Religious communities often provide support during difficult times and create bonds between people. Many of the world's greatest art, music, architecture, and literature emerged from religious inspiration: Gothic cathedrals, Islamic geometric patterns, Gregorian chants, and countless paintings and poems.

Religious can also describe something someone does with extreme dedication and consistency, like a morning routine followed with almost religious devotion. When someone is religious about practicing piano daily, they never miss a day.