^ yig and queztolact have some simialrites. aside from the feather serpents
You have a character outright stating he was quetzacolt prototype in the curse Of yig
"was with the scent of a hound on the trail that I went to Guthrie, for I had spent many years collecting data on the evolution of serpent-worship among the Indians. I had always felt, from well-defined undertones of legend and archaeology, that great Quetzalcoatl—benign snake-god of the Mexicans—had had an older and darker prototype; and during recent months I
2. yig is worshipepd by the plain native american people in the story, Kinda like how similar groups may worship a similar god cause they evolve from the sme source, Like how zeus in real life and odin are cause they descend from some indo european sky god
3. he transforms people to punish them apparently like some of the aztec gods did(into snakes)
4. same ritualistic worshipping, drums etc.
Kinda like How Dagon from cthulu mythos is supposed to be the real life Dagon the mesamoptamians worshipped