How do narratives relate to heuristics?

Narratives and heuristics are both tools for dealing with uncertainty, intractability, and incommensurability, that is, for all real-world situations outside the domain of Bayesian decision theory. But how do narratives and heuristics relate? I suggest two links: Heuristics select narratives to explain events, and "big" narratives select the heuristics that people live by, to execute their values and moral principles.