The simplest answer is: religion is a person's beliefs. Some people believe in a supreme being. Others do not. Some people worship in a church, synagogue, temple, mosque or other building with others who share their beliefs. Others do not.
Beliefs are a very personal thing. Most of the time, children are raised with the same beliefs as their parents, and their parents' parents before them. Religion is something that is often passed down through the family. As we grow, especially when we become teenagers and young adults, we make choices about how we want to live our lives. Religion often provides the foundation for making the good choices.
Religions have a way of changing as time progresses. Many religions split into different variations of the same faith. Sometimes, new religions are created, and new laws or rituals are added. People also change as they grow up and often they change religions becoming "converts" of another religion. Converting to a different religion or staying with the same religion for life is another personal choice people make
