I think it's something that exists, and it's a completely different entity outside of the human. An invisible and energetic entity. We certainly can't say that it is responsible for our bad behavior. (The responsibility for our bad behavior is entirely ours) But Satan can lead us energetically. And that usually ends badly for us. Example: The phenomena we like to call Murphy's law are often the result of these bad directions by Satan. Another example: Something that comes to mind happens to us soon. (This is not something that happens all the time. There are those who call it the universal law of attraction. But I wonder if they are triggered by another force....) Yes, I think they can read thoughts. Because they are energetic beings, and thought is also a kind of energy.