Since my experience with one of these beings, I have never really had a problem with the concept of Satan. I think about it this way. If there are beings are cloaked in light, exceeding kindness, love, acceptance, selflessness, and benevolence, then it would seem reasonable there would also exist beings on the opposite end of the spectrum. Beings that are cloaked in darkness, loathsome, vile, hateful, petty, spiteful, mean, intolerant, and merciless. In fact, I can’t imagine one without the other. It would seem to be a natural outcome of our universe.