I don't know if this will make any sense, but these are some thoughts I have had on the Genesis story of man. First of all these are purely my own thoughts and certainly flawed, but they help me carry around a kind of understanding that I can deal with.
In my mind, I have drawn a parallel to events in history that have played out multiple times in multiple places.
Once upon a time, there was a primitive tribe of people cut off from all contact with the outside world. It developed a way of living that included right (rules for living and working) and wrong (taboos), and it lived closely with nature and it's God(s). This way of living worked well for these people and they had very few, if any social problems. Theywere not embarrassed by things that people in the outside world find embarrassing or wrong, because those concepts were foreign to them. They would not consider living any other way than they have lived through the ages.
Then comes the outsider. He says, "Look, folks. There are things your God(s) have not told you. There is a whole world of knowledge out there. And by the way, those rules of society and taboos of yours, you don't really have to follow them, if you don't want to. Nothing bad will happen to you if you decide to do what you want. Why don't you put it to the test? Oh, one more thing, some of the stuff you think is ok, well out in the real world, it would not be acceptable."
Then what happens? Someone adventurous tries breaking a taboo to see what will happen. Nothing does, of course. He spreads the word. But what that person does not see is the future. Soon his orderly society is in chaos, life is no longer pleasant. Harmony is gone. Selfishness reigns. It is no longer possible to live the way they once did, so they must leave their isolation and enter another world, one that is harsher and crueler, in spite of the vast amounts of knowledge (good and bad) available. Many of them become grief stricken and ashamed and try to retain some vestige of the past way of life while learning to live in the new world. Many others embrace the new world so wholeheartedly that they completely forget what was, and couldn't care less about the past.
The two groups become known as The Sons of God and the Sons of Man.
I've never put that in writing before. :D It is not meant to be a statement of belief, just the way I make sense of Genesis.