Wicca Wiki

A religion is a coherent set of beliefs that is believed due to faith,
and is usually accompanied by rules of conduct, and often ritual practices.
Religions most often involve faith in the existence of one or more beings that cannot be seen, called gods or deities.
Religions often involve gatherings of people who adhere to the religion,
and/or specialized buildings or other areas that are dedicated to the religion (if the adherents can afford them).