A desire to do something that is so strong most people cannot prevent themselves from doing it. Even if it is against their conscious desires, they will still do the action. Usually requires outside assistance to overcome.
Readers, please enjoy this guest blog post by Sandra Kynes, author of several books, including The Herb Gardener's Essential Guide, Plant Magic, and the new Witches' Encyclopedia of Magical Plants, among many others.
Although a few old books...