I've never given it much thought before:
These drawings can't be Spanish. Obviously, they came from the peoples of South America. It could be the Incas, the Aztecs, or someone else. I am so confident about this, because the drawing was made according to all the canons of their compositions. Also, the culture of such sacrifices is very characteristic of them.
But where did this drawing come from? There is no point in such a drawing being in a Spanish cave.
But then I noticed the cult symbol on top:
I thought I was imagining it. It's just my imagination, you know. But the person who worked with the texture saw the symbol clearly and redrawn it:
And of course, it is impossible not to mention that sacrifice is a sign of a cult, too:
So what does it all mean?
My theory is very simple. What connects Mexico and Spain? That's right, colonization. In the 1500s, Spain colonized the Americas, so Spain had a large Mexican colony in Mesoamerica. This means that there is a strong possibility that the parasite and cult came to Spain from the Spanish conquistadors.
