後天卦配洛書之數 Post-Trigrams x LUO-SHU

啓蒙附論曰火上水下故九為離一為坎火生燥土故八次九而為艮燥土生金故七六次八而為兌乾水生濕土故二次一而為坤濕土生木故三四次二而為震巽以八數與八卦相配而後天之位合矣

按邵子以文王八卦為入用之位後天之學朱子以洛書為數之用術家飛宫弔替俱用後天配洛書其法以坎一坤二震三巽四中五乾六兌七艮八離九為序劉歆曰八卦九章相為表裏張衡曰聖人重之以卜筮雜之以九宫則所從來遠矣

洛書之數 LUO-SHU	後天八卦 Post Trigrams	次序 Order	方位 Direction
三⑶	震☳011	長男 the oldest son	東East
四⑷	巽☴100	長女 the oldest daughter	東南Southeast
九⑼	離☲010	中女 the second daughter	南South
二⑵	坤☷111	母 mother	西南Southwest
七⑺	兌☱001	少女 the youngest daughter	西West
六⑹	乾☰000	父 father	西北Northeast
一⑴	坎☵101	中男 the second son	北North
八⑻	艮☶110	少男 the youngest son	東北Northeast
五⑸	中Center		中Center

The Qimeng Fulu (Supplementary Commentary on Enlightenment) _ctext states:

• ㊋_FIRE is above and ㊌_WATER is below. 9 corresponds to ☲_FIRE. 1 corresponds to ☵_WATER
• ㊋_FIRE generates dry ㊏_EARTH, so 8 follows 9, corresponding to ☶_MOUNTAIN
• Dry ㊏_EARTH generates ㊎_METAL, so 7 and 6 follow 8, corresponding to ☱_LAKE and ☰_HEAVEN
• ㊌_WATER generates wet ㊏_EARTH, so 2 follows 1, corresponding to ☷_EARTH
• Wet ㊏_EARTH generates ㊍_WOOD, so 3 and 4 follow 2, corresponding to ☳_THUNDER and ☴_WIND
• Through these eight numbers matching the eight trigrams, the Post-Natal positions are harmonized.