Four ping sights+Four functions of a myth?

Joseph Cambell says that myths are clues to the spiritual potentiallites of human life" looking at the four ping sights, the story of the enlightenment of the buddha. the story of the bhagavad gita and the story of mindfulness by thich nhat hanh. How might these stories illustrate the four functions of myth. a) the initiation into the spirtual life. b) the ethical and social function of how we are to behave. c) the cosmological function of knowning where we fit in the larger order of things. d) the pedagogical function the teaching function of how to live a good human life.