You often hear about the forbidden knowledge of Lovecraftean horror, but when I was thinking about it, I realized, that as a society, this is actually something that we have to face already.
Mysophobia is an extreme fear of germs. Think about it. Centuries ago, we had no knowledge of this level of our reality. There were no creatures multiplying by billions, wet still invisible living in your brain eating it from inside out. It is a horror beyond our comprehension and it does lead to eternal fear. We cannot do anything about it.
It does fit the description perfectly.
I don't get why so often people look into far future or dark fantasy to find an object fitting of their descriptions without looking into our current reality first.