Mortals fancy that gods are born, and wear clothes, and have voice and form like themselves. There is only one god, he said, and that is the universe, nature. This perspective is known as pantheism. Nevertheless, said Xenophanes, all things, even human beings, evolved from earth and water by means of natural laws. He extended Xenophanes concept of the one God by saying Hen ta panta, all things are one.
Ultimate reality is constant.
What we believe to be a world of things and motion and change is just an illusion. By the time Achilles gets to where the tortoise started, the tortoise will have move a little further. By the time Achilles gets to where the tortoise had moved, the tortoise will have moved a little further still, and so on. Hence, Achilles can never catch up with the tortoise. The point of the story, and all the stories, is that motion is an illusion.