Also, perhaps the images of him changing slowly showing different cultural and mythical traits is a symbol that deep down, all cultures and all people are all interconnected.

It’s so true too. If you compare the myths of totally different areas, you’ll find that there are many similarities. There are even similarities in modern religions that are nothing like each other. I’ve had amazing chats with my Catholic grandma and my Mormon friend, and I’m pagan, and both of them have found a common ground with me and I them. :o)