We live in two worlds; the mundane world and one of myths and invention. Both are of our own creation and are impossible to separate yet define what we each subjectively define as reality and truth.
Storytelling helps us separate the possible from the impossible. Recognising that boundary and where we stand in relation to it keeps us sane. We are drawn to fiction, powerfully; it fascinates us. It alerts us to what is potentially untrue that could threaten the stability of our normal, everyday lives.
Myth is perhaps the original meme, that has shaped human civilisation, developed from our need to make sense of our world using invention, hypothesis, and interpretation of dreams and the fantastical, often chemically induced.
We create unreal worlds inhabited by artificial surrogates who act-out good and bad choices we could make in our own lives. We learn from fiction and use it to guide us in our own decision making.
It is a teaching tool that helps us survive the increasingly complex world we have constructed.
We cope with stresses in the real world by confirming the boundaries with the unreal world and are distressed when perceptions are blurred by the less human aspects of modern culture - commerce, bureaucracy, and politics.