When God made the sun I am sure He had in mind that it would be a symbol of the Incarnate Light of the World. I think He was probably well aware of how the moon as it reflects that light into a dark world would symbolise the Mother and Church.
The old pagans who were wiser in many ways that we give them credit, understood the symbols of sun and moon and made a god and godess around them, but they lacked the full truth of how the heavenly objects were types to show us the way to the reality of heavenly persons. We should not be too hard on them, for there were those who through reason and without the benifit of revelation understood something of the nature of a god of the sun or sun-god or even a son-god.
Both Jesus and Mary have been called “morning star” and so has Satan. How can God and Satan have the same symbol? It does make me a bit uncomfortable at times. But then it’s something that should tell us about what Satan hoped for himself. He, like his friends, wants all the power and glory of God, but without having to do all the sacrificing and love that goes with it.
Isaiah’s words about how the king of Babylon would fall includes calling him the Day Star, Son of the Morning (in Latin Lucifer and in Hebrew Helel). This passage (ch 14) has been considered a prophesy about Satan but also his best minion, the Antichrist. The King of Babylon was a type of Antichrist and tried to hold a title that was really for God and His Bride.
It is noted at times that the star of the morning is often considered to be the planet Venus. The goddess in her many forms is an Antimarian figure. The corruption of the Queen mothers (gebirah) in Israel’s royal family was also a type of antimarian.
The fall of Satan was bigger than the fall of the other devils because Satan had been one of the brightest angels. The Light Bearer, Star of the Morning – and he fell into darkness.
The darkest gods in the pagan pantheon are opposites of God as He really is. Just as God is Adonai, so the father god of the Canaanites was Ba’al a ruthless father god. Just as Christ is the King of Kings, so many kings arose trying to grasp the Godhead for themselves and fell int he process. (Antiochas Epiphanes has to be the major type of Antichrist, more so even than Solomon after his moral fall).
Christ and His Mother really are the Morning Star, He is the Son who shines brightly with His own Light as the sun shines at morning. She is the star like Venus who shines her light which is a reflection of His Light.
Just as the sun gives light and life to the world, so the Son gives Light and life to all of us.