The first thing that helped architecture to develop was the worship of God, the second was necessity, and the third love of beauty. Then people discovered the art of painting and the art of sculpture. The latter was dedicated to religion, to their belief, to God; the art of painting was principally dedicated to making pictures of the myths and legends of their race. Nearly all the ancient legends are connected with metaphysics and religion; they are symbolical. Even if they were primitive legends, coming from the earliest races who had not yet developed their symbology, they were symbolical just the same. Every religion contains symbology, and it belongs to metaphysics. That is why the ancient people painted their books of philosophy on their walls in the form of legends, and by their primitive sculpture they gave form to the objects of their behalf and of their worship.