" They are like a man who does his work over again; or who goes out of a city that he may enter it once more; or who lets go what he has caught in hunting that he may hunt it again. Their labor is in vain; for they will find nothing, and that because they are turning back to their former ways, as I have said already.4 3. Under these circumstances, if they meet with no "

― Juan de la Cruz , Dark Night of the Soul