Now when a person has experienced the state of interior nothingness, as it is conveniently, perhaps, and yet not accurately termed, he has by divine grace, not only succeeded in conquering sin in the gigantic forms of creature-love and of self-will, but in breaking down the perplexing influence and the unfavorable tendency of former habits. And hence there is a vast accession to his power, and to his tendency to union with God, Satan himself, in the presentation of his temptations, has comparatively but little influence over such a soul. He has, comparatively speaking, no basis to operate upon, no way of secret, circuitous, and indirect attack; but must come boldly up and make his attack, face to face, as he did in his temptation of the blessed Savior. And this he would rather not do, if he can approach the object of his attack in some other way.
— edited from The Interior or Hidden Life (2nd edition, 1844) Part 3, Chapter 12.