Conjecture: Stories are long-form descriptions of human emotional state reactions, analogous to chemical reactions.
Example: Chick flicks. They generally follow the formula of Humor and Worship -> Sadness -> Surprise and Happiness. Because Humor is Surprise and Disgust, the first act can be rearranged to “(Surprise and Disgust) and Worship = Surprise and (Disgust and Worship) = Surprise and Evil”. It makes a certain amount of sense because the chick flick formula has been feminism’s most effective cultural weapon for destroying the character of Western women. The basic deception is that Evil -> Happiness, where degenerate behavior predictably results in blissful elation because putting out makes the cad fall in love.
The difference between a story and a proper mythos is that the latter makes use of human archetypes to describe macro-scale human political interactions. A good example would be a story which anthropomorphizes the causal forces at work in my Pyrrhic cycle. For example, Conan the Barbarian could stand in for the K-selected barbarian outbreak because he is an archetypal representation of that sort of person. The key to doing this properly is to understand how archetypes work, which should be its own post.