9580. But to conduct a spirit outside his own world by means of variations of the state of his interiors, and to cause these variations to successively advance up to a suitable or like state with that of those to whom he is being led, is in the power of the Lord alone; for there must be a constant direction and foresight from first to last, both ways, especially when this is to be effected with a man who as to the body is still in the world of nature, and who is thereby in space.