There is a symptom of schizophrenia called “a poverty of thought”. In other words, the patient simply has fewer thought processes going on than healthier people. Hence, they might seem disengaged, helpless, staring off into space, and so forth.
I felt that I was experiencing this for a period of time. I would attribute it to a general feeling of hopelessness. Why mull over the problems of the world when life is so absurd, and there are so many issues? Maybe it is best just to put them out of one’s mind.
I eventually felt that this was not the best of habits, so I tried to re-engage, finding various activities, creative and otherwise, to think about. Being married, and having 2 cats, also helps in this regard.
That being said, I would say that feeling guilty about empty or quiet states of mind is ultimately a bad idea. If a person feels at peace, that is really ok. If a person can’t connect at all, can’t function, then, obviously there is an issue. Otherwise, I wish I had never worried about the poverty of thought symptom.
Just today, I was feeling tired and out of ideas. I tried not to be concerned about it, and let it happen, and I am still fine.