" i was in this area which i knew by heart, not sure how though, and walked through the halls. it was abandoned. this was in my opinion a lucid dream. "
lucid dreaming is where you become fully aware and conscious of the fact that you are dreaming while you are still within the dream itself, not necessarily when you just know you're way around. theres also different levels of lucidity
i've been observing dreams pretty in depth for years now and while there are aspects i can 'map', i don't think mapping the actual terrain is a very feasible task... for me at least. They are just infinite, and they also can change and combine in infinite variations IME..but like the infinitely complex cosmos, there are some parts or aspects of it that i'm far more familiar with than others parts
<Ringworm>hehehe, it's all fun and games till someone loses an "I"