Ineffable Ontological Detanglement .: Introspective Assistance & Mental Analysis Manual
Your ability to anchor yourself to your immediate location within the greater location and all other locations around this location. If you can wake up in travel and just suddenly feel, oh, we're going east, you have good sense of direction. You may be wrong, at which point make brain hurt, however you're generally comfortable within these familiar feelings.
This is theoretical, however I do have some confirmatory data from people with a much higher sense of direction than myself. It could only be the level of magnetism in your nervous energy. I have this innate faculty and I have never had ear buds or headphones that last longer than a year, eventually they always cut out, I always used to make the joke that I appear to be magnetic like that kid in South East Asia that people stick forks to. My father had this same problem, and he also had high natural sense of direction. The poles are magnetic, that's how we do it.
This does not mean higher nervous energy, it simply means your brain floods your nervous energy with a higher degree of electromagnetism.