Deep Narratives are story patterns that are repeated so many times, in so many different forms, that they become part of our subjective reality (many times, regardless of their truth). They become the building blocks of your world views. Deep narratives become permanent structures in the brain. Scientists believe they actually affect your brain chemistry.
You can activate several deep narratives at the same time. This mental infrastructure contributes to the explanation of why several people can see the same event, and each believe something different occurred. For example, two witnesses see the same thing, but their recollection contradicts each other.