Wicca is not exclusively a religion. The term religion was most aptly described, I believe, by Richard Geertz:
(1) a system of symbols which acts to (2) establish powerful, pervasive, and long-lasting moods and motivations in men by (3) formulating conceptions of a general order of existence and (4) clothing these conceptions with such an aura of factuality that (5) the moods and motivations seem uniquely realistic.
In other words, a religion is a set of symbols that order our existence and cause our conceptions, moods, and motivations to seem unique and realistic. This definition has been disputed. One dictionary defines religion as follows:
A set of beliefs concerning the cause, nature, and purpose of the universe, esp. when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and often containing a moral code governing the conduct of human affairs.
This is closer, but still incorrect. This particular definition neglects the placement of the word “dynamic” before the word “beliefs.” Wicca is ever changing, unlike religions which proudly state that their religion has been passed down from generation to generation.
We do not believe in a static universe, static beliefs, or a static god. We walk a path – many of us with common beliefs on how the world is ordered. We often live by a common code – but the words may differ. And the code is not interpreted as one right way.
We believe in balance. We believe in science – that for every action, there is a reaction, and often it is much stronger than we can perceive. We believe in responsibility, and in a debt owed to the earth and matter which supports our existence.