Joseph B. Wirthlin

The light from the sun breaks through space, bathing our planet as it encircles the sun with life-giving warmth and light. Without the sun, there could be no life on this planet; it would be forever barren, cold, and dark.

You can also make explicit certain social problems which, again, would be prejudged or not encountered at all in real life, because people have set up defenses against it. Fantasy allows you to get past defenses.