I'll absolutely retreat into my own world, although I'll make myself engage with the outside world more than I did when I was a child. When I was in elementary school, my mother used to complain that it was like pulling teeth to get me ready for school in the mornings, because I was always, "in a fog."
I recall another time, also in elementary school, when I was physically sitting at the lunch table in the school cafeteria with everyone else. Mentally, I was millions of miles away. I was forced out of it when one of the teachers supervising in the cafeteria sharply called my name, saying, "C, wake up, we're moving the table."
I was pulled out of my fantasy world, and suddenly noticed that I was the only one left sitting at the table. Everyone else in the class had gotten up when this teacher had apparently told them to do so so the table could be moved. I hadn't even noticed that she was there addressing the class until she said my name. She seemed annoyed, but not particularly surprised or concerned by initial lack of responsiveness, probably because I'd been attending this school for a few years by then, and she was used to that sort of behavior from me at that point. I was in many similar such situations over the course of these years in my life.
By the time I reached late adolescence and then adulthood, I still often retreated into my own world, though I'd make myself "come out" for things like school, work and social situations when I was prepared for them. Even so, when I'm just out walking, and/ or running errands, I don't see much reason to tune into the outside world when my inner world is right there waiting for me.
Several years ago, an ex of mine, J, commented on this, saying that I didn't seem to notice what was going on around me a lot of the time, and it's a problem. He commented that his friends told me that when I saw them out and about I never seemed to notice them until they greeted me first, and sometimes not even then. Of course, if I'd only met the person once or twice, it was also possible that I didn't recognize them. You've got to love prospagnosia.
J also commented that even when he first met me, he noticed this. We had first met in Barnes and Noble of all places, which is ironic, as I later learned that J was one of the most nonintellectual, semi-literate idiots around. I'm still not sure what he was doing in a bookstore. I suspect he was lost. He commented that before he struck up a conversation with me right outside the store, he was watching me read, and I kept my eyes on the book the entire time, never looking up once to take stock of my surroundings. He told me that this was unusual, and it was a problem. I'm not sure what I was supposed to be looking at, aside from my book when I'd come to Barnes and Noble for the sole purpose of looking at books, but that's beside the point. J was a criticizing son of a b****, and thankfully ancient history for me at this stage, so I don't care about his opinion. My own world is a lot more interesting than he could ever have hoped to be. It's very different with S, who understands that my own world is an interesting place worth visiting, and has enough to offer that I'm happy to come out to be with him.
Anyway, my point is, yes, I'm quite accustomed to spending time in my own world, which makes a lot more sense to me than the outside world.
If I said too much, feel free to ignore, and continue the discussion. There's still constructive discussion happening on this thread, and I'd hate to kill it.
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"And I find it kind of funny, I find it kind of sad./ The dreams in which I'm dying are the best I've ever had."