E.t.a. Hoffmann said this quote
“ If there is a dark and hostile power, laying its treacherous toils within us, by which it holds us fast and draws us along the path of peril and destruction, which we should not otherwise have trod; if, I say there is such a power, it must form itself inside us and out of ourselves, indeed; it must become identical with ourselves. For it is only in this condition that we can believe in it, and grant it the room which it requires to accomplish its secret work. Now, if we have a mind which is sufficiently firm, sufficiently strengthened by the joy of life, always to recognize this strange enemy as such, and calmly to follow the path of our own inclination and calling, then the dark power will fail in its attempt to gain a form that shall be a reflection of ourselves. ”