37. Every man has an Internal and in External; but it is otherwise with the good from what it is with the evil. With the good the Internal is in heaven and its light, and the External in the world and its light; and, with them, this latter light is illuminated by the light of heaven; wherefore, the Internal and the External with them act as one, like the efficient cause and the effect, or like what comes first (prior) and what follows afterwards (posterior). But with the evil, the Internal is in the world, and in its light; and in the same light also is the External; wherefore, they see nothing from the light of heaven, but only from the light of the world, which light is called by them the lumen of nature. This is why the things belonging to heaven are for them in thick darkness, and the things belonging to the world in light. From this it is plain that the good have an internal and an external man, but that the evil have no internal man, but only an external.