Every culture bathes their children in stories to explain how the world works and to engage and educate their emotions. Perhaps story patterns could be considered another higher layer of language. A sort of meta-grammar shaped by and shaping conventions of character types, plots, and social-rule dilemmas prevalent in our culture. - http://blogs.scientificamerican.com/guest-blog/2013/05/08/it-is-in-our-nature-to-need-stories/