Twenty-four mountains:
Dry, smoked, gen, Kun, Yin, Shen, Si, Hai, A, G, C and Ren are Yang; Zi, Wu, Mao, You, Chen, Xu, Ugly, Wei, B, Xin, Ding and Gui are Yin.
The five elements belong to gold: Geng, Xin, Shen, You and Gan.
The five elements belong to wood: A, B, Yin, Mao and Xun.
The five elements belong to fire: C, D, IV and V.
The five elements belong to water: man, ghost, son and sea.
The five elements belong to the earth: ugly, Chen, Xu, Wei, Kun and Gen.
Four positive hexagrams: Kan, Li, Zhen and Hui; And the four hexagrams: Gan, Kun, Gen and Xun.
Tianyuan, four positive hexagrams, that is, meridian, are all yin.
Sifang Tianyuan, that is, dry Kun Kun, belongs to Yang.
The geographical elements of the four orthodox hexagrams, namely, Ren, C and G, all belong to Yang.
The four geographical elements of hexagrams, namely ugliness and ugliness, are all yin.
The numbers of the four positive hexagrams, that is, Ding Yixin, are all yin.
The numbers in the four corners of the hexagram, that is, Jihai, belong to Yang.