ji-you day pillar

己酉 is a good place to see polarity at work. 己 and the lone hidden stem 辛 are both yin, and earth produces metal, so 辛 counts as the Eating God. Were the day master 戊, the same 辛 in the same branch would be called the Hurting Officer.

Where 戊申 was a field, this entry in 三命通會 卷一 is the crop: 秋间禾稼, grain standing in autumn, with a liking for 申, 酉 and winter. The two pairs hold the 納音 Earth of the Great Post Road in common.

The Growth position at 酉 has textual backing and textual rivals. 淵海子平 writes 己生酉而艮（寅）中亡: 己 is born at 酉 and perishes in 艮, with 寅 added in brackets in the text we use. 三命通會 holds this line in one chapter and a water-earth line in another, while 五行大義 runs earth differently again.