山西素有“表里山河”之称。《左传·僖公二十八年》记载子犯的话说:“战也。战而捷,必得诸侯。若其不捷,表里山河,必无害也。”说的就是山西。表里就是内外,山西外有大河,内有高山,地势险要,易守难攻,确实是一处锦绣江山。若从东面走进山西,一定要经过娘子关。娘子关是三晋的门户,表里山河的东大门,有“京畿藩屏”的美誉。 Shanxi known as “inside and outside mountains and rivers ” said. “Zuo Xi public twenty-eight years” records the son said: “War also .War and Czech, will have princes .If it is not Czech, the mountains and rivers, will harmless.” “That is Shanxi. Inside and outside the table is inside and outside, there are rivers in Shanxi, there are mountains, terrain, easy to keep hard, really is a beautiful country. If you enter Shanxi from the east, you must go through the Niangziguan. Niangziguan is the gateway to Sanjin, the east gate of the mountains and rivers, there are ”Gyeonggi fan screen " in the world.