天有六氣．寒暑燥濕風(fēng)火，即四時(shí)之主氣．候至而布之．以分六氣也．至于司天．則從地上六位之專精．而正對(duì)以居之．以主期年．而名之為司天者．根據(jù)于甲子值歲之氣．仍以地上不遷之氣．會(huì)天之元．而立為監(jiān)司也．其為六氣．一以甲子為序．而異于地上之四時(shí)．蓋既以主持一歲．則自當(dāng)以甲子為序也．其三陰三陽(yáng)．上奉之者．六元在天．則三陰三陽(yáng)不自payment-defi.com/zhuyuan/主氣．所以正對(duì)皆奉之也．首少陰君火者．君火位午對(duì)子．令甲始子．與君為對(duì)．故遂名君火．尊君之出令也．其令主熱．不與顯明卯位之君火同．彼以方春行令．止以照臨．此在午宮．所對(duì)本屬夏令也．次丑未為太陰濕土．太陰在地．每與厥陰少陰合三陰而不離．故其位必次少陰．又坤土位未對(duì)丑．為土之官旺．是以上奉濕令也．又次寅申為少陽(yáng)相火．火之精．本生于寅．寅對(duì)于申．申尚有余暑．故以寅申奉火令．不當(dāng)午者．午當(dāng)君火．不敢侵也．又次卯酉．為陽(yáng)明燥金之臨．旺于酉對(duì)卯．故奉燥令也．又次辰戌．為太陽(yáng)寒水．寒水本位亥子．而亥屬風(fēng)木．子為午對(duì)．唯辰為水庫(kù)．戌當(dāng)水冠帶．為進(jìn)氣．故即以辰戌奉寒令．終巳亥為厥陰風(fēng)木．風(fēng)木于正六氣．本在丑子及寅司天．移位于巳亥者．木長(zhǎng)生在亥．其對(duì)巳．故即以此奉風(fēng)令也．蓋其所司以為一歲之令．唯六元主之．三陰三陽(yáng)不能盡合．故唯上從而奉之．唯帶有本位本氣．則有本標(biāo)太過不及之說．經(jīng)payment-defi.com/sanji/曰少陰所為標(biāo)也．厥陰所為終也．是巳有其所司．即有其在泉者．以天包地下．地在天中．地居天之半．而天氣之行于地者．亦半行于地上．半抑于地下．在前三氣行于地上．故屬司天．后三氣抑于地下．故屬在泉．在泉之氣沉而不上．故前揚(yáng)后抑．前宣后郁．恒與司天為對(duì)．司天子午．則在泉卯酉．司天丑未．則在泉辰戌．司天寅申．則在泉巳亥．恒相對(duì)而輸轉(zhuǎn)之．故有在天在泉之異也．司天極于三氣．以天施之至也．在泉居于六氣．以地沉之至也．然總以司天為本．故本文不設(shè)在泉之歲．以司天統(tǒng)之也．
