What, in your view, is the purpose of religion?
Anyone interested in what religion/myths are really for should read The Power of Myth, Joseph Campbell and Bill Moyers:
MOYERS: Why myths? Why should we care about myths? What do they have to do with my life?
CAMPBELL: My first response would be, "Go on, live your life, it's a good life -- you don't need mythology." I don't believe in being interested in a subject just because it's said to be important. I believe in being caught by it somehow or other. But you may find that, with a proper introduction, mythology will catch you. And so, what can it do for you if it does catch you?
One of our problems today is that we are not well acquainted with the literature of the spirit. We're interested in the news of the day and the problems of the hour. It used to be that the university campus was a kind of hermetically sealed-off area where the news of the day did not impinge upon your attention to the inner life and to the magnificent human heritage we have in our great tradition -- Plato, Confucius, the Buddha, Goethe, and others who speak of the eternal values that have to do with the centering of our lives. When you get to be older, and the concerns of the day have all been attended to, and you turn to the inner life -- well, if you don't know where it is or what it is, you'll be sorry.
Greek and Latin and biblical literature used to be part of everyone's education. Now, when these were dropped, a whole tradition of Occidental mythological information was lost. It used to be that these stories were in the minds of people. When the story is in your mind, then you see its relevance to something happening in your own life. It gives you perspective on what's happening to you. With the loss of that, we've really lost something because we don't have a comparable literature to take its place. These bits of information from ancient times, which have to do with the themes that have supported human life, built civilizations, and informed religions over the millennia, have to do with deep inner problems, inner mysteries, inner thresholds of passage, and if you don't know what the guide-signs are along the way, you have to work it out yourself. But once this subject catches you, there is such a feeling, from one or another of these traditions, of information of a deep, rich, life-vivifying sort that you don't want to give it up..........
CAMPBELL: Read myths. They teach you that you can turn inward, and you begin to get the message of the symbols. Read other people's myths, not those of your own religion, because you tend to interpret your own religion in terms of facts -- but if you read the other ones, you
begin to get the message. Myth helps you to put your mind in touch with this experience of being alive. It tells you what the experience is. Marriage, for example. What is marriage? The myth tells you what it is. It's the reunion of the separated duad. Originally you were one. You are now two in the world, but the recognition of the spiritual identity is what marriage is. It's different from a love affair. It has nothing to do with that. It's another mythological plane of experience. When people get married because they think it's a long-time love affair, they'll be divorced very soon, because all love affairs end in disappointment. But marriage is recognition of a spiritual identity. If we live a proper life, if our minds are on the right qualities in regarding the person of the opposite sex, we will find our proper male or female counterpart. But if we are distracted by certain sensuous interests, we'll marry the wrong person. By marrying the right person, we reconstruct the image of the incarnate God, and that's what marriage is.
He goes on and on about all sorts of topics and reasons on why and how myths are central to people in all stages of society.
Actually the book is all an interview and they are here transcribed so the entire book is here:
Joseph Campbell and The Power of Myth | Shows | BillMoyers.com