I think the opening is trying to tell us something about Inga.
At the end of the OP, there were two large statues.
One appear to be a short male wearing animal skin on his head.
And one appear to be a woman with classic ribbons associated with mythical beings.
Further, the woman statue was actually shown earlier, in a shrine.
I think it is pretty clear that Inga is a forgotten deity. Someone who was once worshipped, but she out-lived all her followers. Or at least, she is the Earthly avatar of the Goddess, perhaps using the corpse of a long dead woman as her vessel.
What is freaky about her shrine, is the little figurines around her; if you look closely you might see that they contain a variety of designs that appear to be from many religions around the globe. That's going to raise questions on exactly what kind of Goddess she is suppose to be...