One can see secret suggestions of this in their images. Apollo tunes a lyre; Athena is armed; Aphrodite is naked (because harmony creates beauty, and beauty in things seen is not covered). While these twelve in the primary sense possess the world, we should consider that the other gods are contained in these. Dionysus in Zeus, for instance, Asklepios in Apollo, the Charites in Aphrodite. We can also discern their various spheres: to Hestia belongs the Earth, to Poseidon water, to Hera air, to Hephaistos fire. And the six superior spheres to the gods to whom they are usually attributed. For Apollo and Artemis are to be taken for the Sun and Moon, the sphere of Kronos should be attributed to Demeter, the ether to Athena, while the heaven is common to all. Thus the orders, powers, and spheres of the Twelve Gods have been explained and celebrated in hymns. VII. _On the Nature of the World and its Eternity._ The Cosmos itself must of necessity be indestructible and uncreated. Indestructible because, suppose it destroyed: the only possibility is to make one better than this or worse or the same or a chaos. If worse, the power which out of the better makes the worse must be bad. If better, the maker who did not make the better at first must be imperfect in power. If the same, there will be no use in making it; if a chaos . . . it is impious even to hear such a thing suggested. These reasons would suffice to show that the World is also uncreated: for if not destroyed, neither is it created. Everything that is created is subject to destruction. And further, since the Cosmos exists by the goodness of God it follows that God must always be good and the world exist. Just as light coexists with the Sun and with fire, and shadow coexists with a body. Of the bodies in the Cosmos, some imitate Mind and move in orbits; some imitate Soul and move in a straight line, fire and air upward, earth and water downward. Of those that move in orbits the fixed sphere goes from the east, the Seven from the west. (This is so for various causes, especially lest the creation should be imperfect owing to the rapid circuit of the spheres.[208:1]) The movement being different, the nature of the bodies must also be different; hence the celestial body does not burn or freeze what it touches, or do anything else that pertains to the four elements.[209:1] And since the Cosmos is a sphere--the zodiac proves that--and in every sphere 'down' means 'towards the centre', for the centre is farthest distant from every point, and heavy things fall 'down' and fall to the earth <it follows that the Earth is in the centre of the Cosmos>. All these things are made by the Gods, ordered by Mind, moved by Soul. About the Gods we have spoken already. VIII. _On Mind and Soul, and that the latter is immortal._