"Grand Martial Aunt, look, the hexagram in the center is the nuclear hexagram, which reveals the process or the underlying cause of a matter. Both the upper and lower trigrams of this nuclear hexagram are Qian, representing the Heavenly Way and its rules; it can also be interpreted as an indestructible cage or confinement. Whether it is this legacy or you yourself, you have been trapped here by these Heavenly rules or an impenetrable prison for ages. Now, look again: the main hexagram has a moving second line, where a yang line changes into a yin line, resulting in the resultant hexagram, 'Heaven-Mountain Retreat.' The Heaven trigram remains still as the body, while the lower trigram, Gen, represents the mountain; the primary image of the mountain is stillness and motionlessness. And the image of the Gen hexagram? Look, doesn't it look like something in this bedchamber of yours?"
Lin Fei analyzed the hexagrams and pointed to the resultant hexagram as he asked Yin, the Grand Martial Aunt.
"The Gen hexagram has a top and is hollow underneath; it does indeed look like a stool or a chair in my bedchamber," Yin, the Grand Martial Aunt, replied.
Chapter 2997