This is from The Little Book of Thou: Reflections on Ancient Myth and the Writings of Joseph Campbell, a book I wrote for my sisters’ kids as a Christmas present.
Excerpt from Chapter Six: Social Order and Individuality
You remember in an earlier chapter we talked about mimicry. Ancient humans mimicked plants they ate and the animals they ate. These influences didn’t go away but there was something else they observed about the world that they tried to mimic. Can you guess what? Look up. What do you see? If you’re outside, you’re likely to see either the sun or the moon, depending on if it’s day or night. Well, ancient humans observed the sky, a lot, particularly as farms made their food source more consistent and dependable. They found in the sky seven lights that moved against the fixed stars: the sun, the moon, and the five visible planets. These correspond to the days of our weeks, today, which shows how these influences continue to impact future generations. They noticed those lights moved in a consistent order. They thought this must have meant something important that they ought to mimic. How do you mimic lights in the sky?
They applied the consistent order of the lights’ motion. If you think of people first noticing the moon and other smaller lights and then recording how they move over time, you can imagine how profound it would be to discover they moved in a consistent pattern. Why? What did it mean? They decided it meant they should establish a similarly consistent social order. This is where the ruling court of feudal times comes from: the king as the moon or sun, the queen as Venus, and the other court members the other visible planets. They also formed social castes within their populations, a sort of ranking order of importance among people, to match these moving lights. Imagine how important they seemed!