Originally Posted by
Lily Emilio
Nope.
I suggest you don't make wild comments when you know nothing about the fengshui concept that Nasu was referring to. The whole entry is to introduce 3 things: The fox divine spirit in Tamamo SG (Konjiki Hakumen), the concept of 地脈 (Earth vein) and the relation to 龍脈 (dragon vein) being pulled directly from RL fengshui.
龍脈 splits into 2 types, Yin and Yang, as the statement itself pointed out (陰の竜 and 陽の竜), with the fox god representing the Yin Dragon (why it can do that I will explain more below). In Taoism's fengshui application, a "country" itself (apply to any country on Earth, not just China) is perceived to be a sleeping dragon, it is alive but never wakes up because if it does then the country itself will fly away duh. The soil is the dragon's flesh, the rocks are the dragon's bones, the plants are the dragon's hair and scales, the water in rivers is its blood and the dragon veins (龍脈) is well, its vein of life.
However these dragons are simply a part of a bigger system: 地脈. Essentially the world's continents is the corpse of the primordial god Pangu, and thus the 地脈 are literally his veins. Since he is allegedly the prototype human, the veins in his body flows identically to that of any human on earth, and it is the basis of the meridian system used in Chinese traditional medical. Any acupuncture points, any meridian line a human has, it matches that of the land. Because of this, if the human is sick, then the Chinese traditional doctor will try to balance the flow of the Yin and Yang qi flow in that person's body. Similarly, this Yin and Yang qi flow exists for the land itself and any blockage of it will cause bad things to happen. This Yin and Yang qi flow is, I think you should have guessed it by now, the Yin and Yang dragons of the 龍脈. 龍脈 is the FLOW of qi down and inside the 地脈 of the land (the 3 star FGO CE literally explained this exact thing). These are not literal dragons, but representation of the FLOW of qi inside the 地脈. The only actual dragon is the country itself.
But things are not that simple, because the Wuxing system exists. Essentially, even when you can group qi flow paths into Yin and Yang, they are controlled and redirected to specific locations in the body of human/the sacred spots of the land. To do this, they use the Five Holy Beasts 五霊 as representatives (霊 here also doubles as 霊気 - spiritual energy - of the land, might or might not be used for TM definition of 霊脈 - spirit vein). The five are basically the 4 that most people knew (Qinglong, Baihu, Zhuque, Xuanwu) + Huanglong. These 5 creatures are tasked with being representation and control the flow of Yang qi/spiritual energy, and Huanglong (yellow dragon) is the central of it all (important).
But what about Yin? Modern fengshui tend to not dwell on the Yin flow of the dragon vein this is something that existed in the primordial fengshui, because they avoid talking about the dead like hell when talking about this, at best they will make some precautions to not touch the Yin dragon vein AT ALL. Exactly like Nasu said, primordial fengshui uses the fox to govern the Yin flow of the dragon vein. The reason is because ancient Chinese people believe that tombs of the dead are places where smart animals like the foxes can go to train and eventually become the Nine-Tailed Fox yokai. Tombs are sacred places that people never really come around, and it is usually built in the best fengshui directions to not block any critical 地脈, so it is a perfect place for fox yokai to train and become gods, xians once they obtained 9 tails. The white fox in particular is what a nine-tailed fox would be once it obtained the 9th tail after 1000 years of training. Then its fur can turn either black or golden (in this case, Tamamo's original - the Konjiki Hakumen became a xian fox with golden fur). Nasu talks about this in a roundabout way to ALSO explain why Konjiki Hakumen was guarding the tomb of Yellow Emperor when Nuwa asked for her service in Fengshen Yanyi, that even Tamamo was proud of.
So you have Huanglong (Yellow Dragon) representing Yang (the sunlight), wherever it goes is where the flow of Yang qi (Yang dragon vein) goes into the Earth Vein. Similarly the white fox running in the moonlight (Yin), wherever the fox travels is where the flow of Yin qi (Yin dragon vein) goes into the Earth Vein. Both of these are LINES, because these LINES ARE visual representations of the flow of the dragon veins itself in fengshui diagrams, that is, the flow of spiritual energy (or you can say magic energy in TM's case). There is no mistaking fox running silver line for dragon veins or whatever the fuck, the line IS the dragon vein. Period.