In Jungian terms, the uncanny breaks down our expectations for how the world is to operate. When we attempt to understand things, we can only see them through our own filter. If you have a hammer, everything you see is a nail. Our preconceived notions of what is normal break down, and when they are violated, we realize how fragile our epistemic assumptions are: the world isn’t full of nails. We’re left disturbed, unsettled, or shaken. We’re confronted with the irrational and the breakdown of fundamental order of the world. Without something to hold on to, we’re left fumbling in the dark.