A myth has no power unless you believe it to be true. The myth of the Holocaust is a good example -- it has power because Jews actually believe it, and they've convinced much of the rest of the world to believe it. Once you know a myth is fiction, it loses its power over you. You can't say, "I'm going to believe in this myth because it is the myth of my people." Myths don't work that way. The power is in the belief, in the faith.