So the symbolism, sacrifices etc

It all leads Back to ancient civilizations. Mayans, Egyptians, Mesopotamian, Phoenicians, Incas, Aztecs Etc.

https://www.toptenz.net/10-ancient-cultures-practiced-ritual-human-sacrifice.php

https://davidsbeenhere.com/2012/03/27/4-must-visit-mayan-ruins-in-guatemala/