1307. EVIL SPIRITS CAN ALSO THINK IN SUCH A WAY THAT THEIR THOUGHTS SCARCELY COME TO MAN'S PERCEPTION Man cannot think in any other manner than as he perceives his thoughts, for his interior organs are so conjoined with the exterior, and this by continuity and connection. There is, however, a still more subtle thought which he perceives in another way, and since it is interior he perceives it in such a manner that he knows that it is something interior, but does not know more than that. Nevertheless, there are very many things therein which are understood by the angels. But this thought cannot be easily described, and I suppose it is scarcely granted except in those who are led by the Lord, whence they know and perceive in themselves what is to be done, such a perception* of many things with variety then being given, and they know that it is the Lord who does this. * It is said in the Index (s.v. Cogitatio): "This perception is the affection of interior thought."