Geng Zi · Yang Metal Rat
In Chinese: 庚子
Geng Zi, the Yang Metal Rat: cold ore over midwinter water, sharp, clear and determined, a strength that flows into its branch.
Meaning
Geng Zi sets the ore over the Rat’s deep winter water, Metal producing the phase below it. The tradition reads a sharp, determined mind that gives freely of its strength, and does well to keep some for itself.
Geng over Zi: yang Metal over yang Water, a stem that produces its branch, as Metal produces Water.
Geng, Yang Metal, is the raw ore and the axe: strong, decisive, made sharper by the forge. The Rat is quick, alert and resourceful.
The zodiac reads a Geng Zi year as the Metal Rat’s. The Metal Rat is sharp and determined: it knows what it wants, judges quickly and holds its course. Ambitious and loyal to its own, it softens its edges by trusting others a little more.
Its Na Yin, shared with Xin Chou, is Earth on the wall (壁上土 bìshàng tǔ): a sound of Earth, heard beside the pillar’s Metal and Water.
In practice
- As a year, from Lichun, around 4 February: 1840, 1900, 1960, 2020, 2080, 2140 and 2200, in the 1800–2200 table.
- As a month: the Rat month of every Bing or Xin year, opened by Major Snow, as in the solar years 2021 and 2026.
- As a day, every sixty days: in 2026, on 26 January, 27 March, 26 May, 25 July, 23 September and 22 November.
- As an hour: the Rat’s double hour, 23:00–01:00, of Ding and Ren days, whose first hour it is: by default Ulune’s day begins at 23:00.
- As a day pillar, its stem is the Day Master, Geng, sitting on Zi, the partner palace: Zi holds Gui, Geng’s Hurting Officer, and Geng stands at its Rest stage there.
- As a luck pillar or a year, it brings each Day Master the god of its stem and the god of its branch’s main qi: the Correspondences below give them for all ten.
Across traditions
- In Japan, Korea and Vietnam the same pillar is kanoe-ne, gyeongja and Canh Tý, with each language’s readings of 庚 and 子.
How Ulune calculates it
Geng Zi is the 37th of the sixty pillars: the 7th of the ten stems over the 1st of the twelve branches, which the cycle moves on one step together, so that a stem only ever meets the branches of its polarity. Ulune counts a year’s pillar from Lichun, 1984 being Jia Zi; a month’s twelve a year through the cycle, from Bing Yin in the Tiger month of 1984 (the rule of the five tigers); a day’s by the count of days, 1 January 2000 being Wu Wu; an hour’s twelve a day (the rule of the five rats).
Geng Zi belongs to the ten-day week from Jia Wu to Gui Mao, whose stems meet the branches from Wu to Mao and leave out Chen and Si: for a day pillar of this week, those are the empty branches. Its Na Yin is the 19th of the thirty, one for each two pillars.
Correspondences
| Correspondence | Geng Zi |
|---|---|
| Characters, pinyin | 庚子 gēngzǐ |
| Place in the cycle | 37 of 60 |
| Stem | Geng, yang Metal |
| Branch | Zi, the Rat, yang Water |
| Hidden in the branch | Gui 100 |
| Stem and branch | Metal produces Water |
| Na Yin | Earth on the wall, with Xin Chou |
| Its stem’s stage in its branch | Rest |
| Ten-day week | Jia Wu to Gui Mao; empty branches Chen and Si |
| Its stem, for each Day Master | Jia → Seven Killings, Yi → Direct Officer, Bing → Indirect Wealth, Ding → Direct Wealth, Wu → Eating God, Ji → Hurting Officer, Geng → Companion, Xin → Rob Wealth, Ren → Indirect Resource, Gui → Direct Resource |
| Its branch’s main qi, for each Day Master | Jia → Direct Resource, Yi → Indirect Resource, Bing → Direct Officer, Ding → Seven Killings, Wu → Direct Wealth, Ji → Indirect Wealth, Geng → Hurting Officer, Xin → Eating God, Ren → Rob Wealth, Gui → Companion |
| Years, 1800–2200 | 1840, 1900, 1960, 2020, 2080, 2140, 2200 |
| Month | Rat month of Bing and Xin years |
| Hour | Rat hour, 23:00–01:00, of Ding and Ren days |
| Before and after | Ji Hai, Xin Chou |
| Japanese, Korean, Vietnamese | Kanoe-ne, gyeongja, Canh Tý |
Related
- Geng · Yang MetalThe seventh Heavenly Stem, yang Metal: raw ore, the axe and the blade, a strength that cuts, decides and changes what it touches.
- Zi · RatThe first Earthly Branch, yang Water: the Rat, the north, midwinter and midnight, the moment when the year’s new life first stirs underground.
- RatThe first of the twelve animals, the Rat of the branch Zi: quick, alert and resourceful, the one who notices chances others miss and makes much of little.
- Earth on the wallEarth on the wall, the Na Yin of Geng Zi and Xin Chou: earth made into plaster, a fine, useful surface sheltering a home.
- Ji Hai · Yin Earth PigJi Hai, the Yin Earth Pig: garden soil by winter water, a soft bank around a pool, kind, patient and comfortable.
- Xin Chou · Yin Metal OxXin Chou, the Yin Metal Ox: the jewel in frozen earth, fine metal held in its storehouse, principled and unshakable.
Sources
- Sima Qian, Shiji, c. 94 BC
- Ban Gu, Hanshu, 1st century
- Xu Sheng (ed.), Yuanhai Ziping, Song dynasty
- Wan Minying, San Ming Tong Hui, 16th century
- Joseph Needham, Science and Civilisation in China, vol. 3, 1959