Hi L10. To address your quote in blue above...
I have my many problems too, and possibly a demon or two that find sin to reaccess me at times. I seem to not notice them too quickly when it happens, but soon notice the things that i am not doing: reading my Bible, Praying a true and hearfelt prayer. I even notice a personality change at certain moments that gives me an enjoyment or interest in something that I otherwise have no interest in. Ok, I am fully loving Jesus Christ, and trusting Him to be my savior. I even pray that I am not one that will be told to depart, for He never knew me. There seems to be some new interest in that particular verse in Conservative Churches now. I think it is a good point, for the very people that Jesus is telling to depart did some miracles and even did God's work; but they were doers of iniquity.
So, your opinion and discernment do matter very much on this as well. Are demons getting to us as Christians?
Do they bother you?
Most of us go through what you are explaining here at one time or another and in differing ways. We get distracted, we allow ourselves to stray.
I find it happening to me when I stray a little (just a little) from Jesus. I don't however put it down to demons.
I put it down to me being bone idle lazy in attending to my spiritual (and most important life), and paying more attention to others stuff like work, non saved friends, etc.
We all have earthquakes, wind and fire around us most of the time, life is just like that, and to some of us a gentle breeze would seem to be a tornado to another. We are after all, all different.
That"s why we need to stay close to God at all times, and listen to the whisper of the Holy Spirit's voice..
1Ki_19:11 And he said, "Go out and stand on the mount before the LORD." And behold, the LORD passed by, and a great and strong wind tore the mountains and broke in pieces the rocks before the LORD, but the LORD was not in the wind. And after the wind an earthquake, but the LORD was not in the earthquake.
1Ki_19:12 And after the earthquake a fire, but the LORD was not in the fire. And after the fire the sound of a low whisper.
Not sure why it took long to come back and provide some answers to your fine points. Yes, I agree that our apathy and lack of following Jesus can make potential for some of these very bad things, but some of them are just to diabolical. Avoiding too much detail, it is easy to discern the evil in it when it is shortly simply to discern that the very sin thought is not even something that is within our typical personality. Picture that you were out with friends, and just got totally drawn into Ghost hunting, so you embarked on it. Soon after you were done with your evening you note that you have zero interest in ghost hunting, at least not in your psyche. I churn this up to the spirits (familiar) that stick around and find something to just whisper into our ear, and so we get a drug high on it for a few; blindly. Better example, think of the sexual sins that some people just dive into off of a hormonal change, and then upon the commensed act; it is clear that this very fetish is not actually a fetish at all, but a temporary thing that surfaces. So, yes I do believe that apathy creates these diversions, very much. I also do not totally believe that it is purely the flesh that decides. Sometimes it is clear that something far deeper had attached for a while, and finds a way back at certain times.
Maybe we could argue that it is the flesh, and the Holy Spirit does cover it up, but some of these things I just sorta doubt. Plus, if we know that our enemy, the devil, is prowling around looking for a soul to devour; what better ways? Deception is the greatest. Hey, even get us to think it is our own thought... really has worked awesome for the formation of some false Religions too. Just things to think about. In my brief time away from the forums I have lived more in the work world, and noted a few things. It is easy to say the world just sort changes us, but is so easy to note that the Bible does say that Satan does want to ruin our lives. How many times does it say that?
Are we possessed as Christians? No, I don't believe so, but not positive. I am certain we are potentially oppressed. I guess we can say that giving the devil the credit is all he wants... but it is not overly wise to simply say that he does not exist in our lives. Ignorance does not make us wise, but it may give us a gumption that we are safe as Christians. Let us remain saved, and pray to be safe.