I had a dream
This regularly shows itself as being true: our bodies know more than our minds let us in on. Sometimes I just have just a feeling that something is wrong or something, while not being able to pinpoint exactly why or how. But wait a few minutes ignoring this bad feeling, and it turns out to be true.As I get older, I also find my body acting more and more for me. Have something important in the morning to do? I don't need to put the alarm anymore, I'll wake up by myself, not really knowing why until a couple of minutes later when I remember "Oh, I had this thing to do, good thing I woke up!".I think this is what happened in the authors case as well. His mind maybe didn't realize it at the time, that there could be timezone differences that were important, but his body did, so it did its best to steer him towards waking up on time just in case. And in this case, it turned out that his body knew better than his mind.Maybe this is what people mean when they talk about "gut feeling".