So that it must be only by the imagination that Satan has access to the soul, to tempt and delude it, or suggest anything to it. And this seems to be the reason why persons that are under the disease of melancholy are commonly so visibly and remarkably subject to the suggestions and temptations of Satan... Innumerable are the ways by which the mind may be led on to all kind of evil thoughts, by the exciting of external ideas in the imagination.

The Religious Affections