In reality or on this site?
In reality, it is simply gathering together a group of individuals who hold the same values and goals about the magickal world/studying. But you have to be careful about laws, as in many countries and states there is an age restriction on teaching individuals about religion and in some places witchcraft and the study of is still illegal.
On the site, it is no longer possible to create a coven, there are already too many left empty.
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