Zeus and the Good Things

The Good Things were too weak to defend themselves from the Bad Things, so the Bad Things drove them off to heaven. The Good Things then asked Zeus how they could reach mankind. Zeus told them that they should not go together all at once, only one at a time. This is why people are constantly besieged by Bad Things, since they are nearby, while Good Things come more rarely, since they must descend to us from heaven one by one.