WHOLESOME AND UNWHOLESOME COMMUNICATION
Many believe that a man can be taught by the Lord through spirits who speak with him. They who believe so, and will this communication, do not know, however, that it is attended with danger to their souls. While a man is living in the world, he is in the midst of spirits as to his spirit; nevertheless spirits do not know they are with man, nor a man that he is with spirits. But as soon as spirits begin to speak with a man, they come out of their spiritual state into the man's natural state; and then they know that they are with man, and they unite themselves to the thoughts of his affection, and they speak with him from those thoughts. Thence it is that the spirit speaking is in the same principles as the man, whether these be true or false. These he stirs up, and through his affection, united to the man's, strongly confirms them. All this shows the danger in which a man is who speaks with spirits, or who manifestly perceives their operation. Of the nature of his affection, good or bad, a man is ignorant, also with what others he is associated. If his is a pride of self-intelligence, the spirit favors every thought from that source. Likewise there is the favoring of principles which are inflamed from the fire which those have who are not in truths from any genuine affection for them. Whenever from a like affection a spirit favors a man's thoughts or principles, then the former leads the latter, as the blind lead the blind, until both fall into the ditch.
It is otherwise with those whom the Lord leads. He leads those who love and will truths from Him. Such are enlightened when they read the Word, for there the Lord is, and He speaks with every one according to the latter's apprehension. When these hear speech from spirits, as they do sometimes, they are not taught, but are led, and this so prudently that the man is still left to himself. For every man is led through the affections by the Lord, and he thinks from these freely as if of himself. Were it otherwise, a man could not be reformed, nor could he be enlightened.
—Apocalypse Explained, nn. 1182, 1183