Religions are like a set of beliefs that people follow. People usually believe in one or more gods, or natural forces like the sun, rain, or stars. There are lots of different religions - some people follow Christianity, some people follow Islam, and some people follow Hinduism. In each religion, followers believe in different things. But in general, people participate in religious activities, like praying or going to a place of worship, to show their belief and devotion to their religion.