164. Now because those two worlds are so distinct, it is necessary that there should be two suns, one from which all spiritual things are, and the other from which all natural things are. And because all spiritual things in their origin are living, and all natural things from their origin are dead, and the suns are the origins, it follows that the one Sun is living and the other sun is dead; also that the dead sun itself has been created by the Lord by means of the living Sun.