Jasper Sun Mountain was about ten thousand meters high, and it occupied more than a hundred miles of territory. With Lu Mingshu's cultivation, it was impossible for her to go around the whole area within a short time. Thus, she took note of key places when she first arrived and brought Little Daze to them all.
She once bought a book in the Heavenly Wheel written by an array master from another world. His world specialized in arrays, and with just a few words, he explained arrays clearly from the view of a person who made them.
The master mentioned in his book that arrays weren't actually created by humans, but something given by the gods. They were simply a principle of the world; humans only discovered the laws and found ways to use them. Many mountains, rivers, beautiful places, and blessed lands were in line with the laws naturally. They were even more sophisticated than artificial arrays.