What's Going on With Satan?

There's been a multitude of interpretations emerge as a consequence of the biblical story. It seems to me that on one hand, well, it seems like this tragedy that satan, the most evil, the father of evil, whatever, has introduced into people,. But it also seems like without that shadow, that people are kind of insubstantial. Well, if you want to make something strong, you test it. And i think that there's an aspect of being that has that element is that human beings are tested ultimately. We're stuck in the middle between those two things. Maybe we have to distinguish between good and evil? Maybe that's what is about separation of wheat from chaff...