The Twelve Earthly Branches: Hidden Stems, Commanding Stems and Images
A branch is more than a zodiac animal or month: each holds one to three hidden stems. In the month pillar these take turns to command according to the days since the solar term, and the commanding stem is key to judging the Day Master's strength.
Below are each branch's hidden stems, its commanding-stem days as the month branch, and the Yuan Hai Zi Ping's image poem with an explanation.
Song of the hidden stems
「子宮癸水在其中,丑癸辛金己土同;寅宮甲木兼丙戊,卯宮乙木獨相逢。辰藏乙戊三分癸,巳中庚金丙戊叢;午宮丁火並己土,未宮乙己丁共宗。申位庚金壬水戊,酉宮辛金獨豐隆;戌宮辛金及丁戊,亥藏壬甲是真蹤。」
A mnemonic for the hidden stems of the twelve branches, matching those used in this site's chart.
Zi (子)
Hidden stems: Gui (癸)
Commanding stems (as month branch): Ren 10 days; Gui 20 days
Image poem (From the Yuan Hai Zi Ping)
「月支子水占魁名,溪澗汪洋不盡清;天道陽回行土旺,人間水暖寄金生。若逢午破應無定,縱遇卯刑還有情;柱內申辰來合局,即成江海發濤聲。」
Zi heads the branches, where yang returns at the winter solstice. It fears clashing with Wu; joined by Shen and Chen in a water frame it surges like the sea.
Chou (丑)
Hidden stems: Ji (己), Gui (癸), Xin (辛)
Commanding stems (as month branch): Gui 9 days; Xin 3 days; Ji 18 days
Image poem (From the Yuan Hai Zi Ping)
「隆冬建丑怯冰霜,誰識天時轉二陽;暖土誠能生萬物,寒金難道只深藏。刑沖戌未非無用,類聚雞蛇信有方;若在日時多水木,直須行入巽離鄉。」
Chou is the damp earth of deep winter, holding a store of metal. It joins Si and You in a metal frame; with much water and wood it welcomes warm southern fire luck.
Yin (寅)
Hidden stems: Jia (甲), Bing (丙), Wu (戊)
Commanding stems (as month branch): Wu 7 days; Bing 7 days; Jia 16 days
Image poem (From the Yuan Hai Zi Ping)
「艮宮之木建於春,氣聚三陽火在寅;志合蛇猴三貴客,類同卯未一家人。超凡入聖惟逢午,破祿傷提獨慮申;四柱火多嫌火地,從來燥木不南奔。」
Yin begins spring and hides Bing fire. It joins Wu and Xu in a fire frame and fears clashing with Shen; with much fire it should not run further into fire.
Mao (卯)
Hidden stems: Yi (乙)
Commanding stems (as month branch): Jia 10 days; Yi 20 days
Image poem (From the Yuan Hai Zi Ping)
「卯木繁華稟氣深,仲春難道不嫌金;庚辛疊見愁申酉,亥子重來忌癸壬。禍見六沖應落葉,喜逢三合便成林;若歸時日秋金重,更向西行患不禁。」
Mao is mid-spring blossom, the purest wood. It fears heavy metal and too much water; clashing with You it sheds its leaves, joined by Hai and Wei it becomes a forest.
Chen (辰)
Hidden stems: Wu (戊), Yi (乙), Gui (癸)
Commanding stems (as month branch): Yi 9 days; Gui 3 days; Wu 18 days
Image poem (From the Yuan Hai Zi Ping)
「辰當三月水泥溫,長養堪培萬木根;雖是甲衰乙餘氣,縱然入墓癸還魂。直須一鑰能開庫,若遇三沖即破門;水木重逢西北運,只愁原土不能存。」
Chen is the damp earth of late spring that nurtures roots and stores water. A measured clash opens its store; too many break the door.
Si (巳)
Hidden stems: Bing (丙), Geng (庚), Wu (戊)
Commanding stems (as month branch): Wu 5 days; Geng 9 days; Bing 16 days
Image poem (From the Yuan Hai Zi Ping)
「巳當初夏火增光,造化流行正六陽;失令庚金生賴母,得時戊土祿隨娘。三刑傳送翻無害,一撞登明便有傷;行到東南生發地,燒天烈火豈尋常。」
Si is early summer at full yang, hiding Geng metal and Wu earth. It is unharmed by Shen, but clashing with Hai hurts; in eastern and southern luck its fire blazes.
Wu (午)
Hidden stems: Ding (丁), Ji (己)
Commanding stems (as month branch): Bing 10 days; Ji 9 days; Ding 11 days
Image poem (From the Yuan Hai Zi Ping)
「午月炎炎火正升,六陽氣續一陰生;庚金失位身無用,己土歸垣祿有成。申子齊來能戰剋,戌寅同見越光明;東南正是身強地,西北休囚已喪形。」
Wu is midsummer fire at its height, hiding Ji earth. Shen and Zi water bring conflict; joined by Yin and Xu it shines brighter.
Wei (未)
Hidden stems: Ji (己), Ding (丁), Yi (乙)
Commanding stems (as month branch): Ding 9 days; Yi 3 days; Ji 18 days
Image poem (From the Yuan Hai Zi Ping)
「未月陰深火漸衰,藏官藏印不藏財;近無亥卯形難變,遠帶刑沖庫亦開。無火怕行金水去,多寒偏愛丙丁來;用神喜忌當分曉,莫把圭璋作石猜。」
Wei is the dry earth of late summer and the store of wood, hiding Ding and Yi. It joins Hai and Mao in a wood frame; clashes open its store; a cold chart welcomes fire.
Shen (申)
Hidden stems: Geng (庚), Ren (壬), Wu (戊)
Commanding stems (as month branch): Wu/Ji 10 days; Ren 3 days; Geng 17 days
Image poem (From the Yuan Hai Zi Ping)
「申金剛健月支逢,水土長生在此宮;巳午爐中成劍戟,子辰局裏得光鋒。木多無火終能勝,土重埋金卻有凶;欲識斯神何所似,溫柔珠玉不相同。」
Shen is hard metal and the birthplace of water. Forged by Si and Wu fire it becomes a blade; with Zi and Chen it forms a water frame; too much earth buries it.
You (酉)
Hidden stems: Xin (辛)
Commanding stems (as month branch): Geng 10 days; Xin 20 days
Image poem (From the Yuan Hai Zi Ping)
「八月從魁已得名,羨他金白水流清;火多東去愁寅卯,木旺南行怕丙丁。柱見水泥應有用,運臨西北豈無情;假能三合能堅銳,不比頑金未煉成。」
You is mid-autumn's purest metal, refined like jewellery. It fears too much fire and wood; water and moist earth help, and joined by Si and Chou it grows sharper.
Xu (戌)
Hidden stems: Wu (戊), Xin (辛), Ding (丁)
Commanding stems (as month branch): Xin 9 days; Ding 3 days; Wu 18 days
Image poem (From the Yuan Hai Zi Ping)
「九月河魁性最剛,漫雲於此物收藏;洪爐巨火能成就,鈍鐵頑金賴主張。海窟沖龍生雨露,山頭合虎動文章;天羅雖是迷魂陣,火命逢之獨有傷。」
Xu is the dry earth of late autumn and the store of fire, the hardest-natured branch. It tempers raw metal; clashing with Chen brings rain, joining Yin brings eloquence.
Hai (亥)
Hidden stems: Ren (壬), Jia (甲)
Commanding stems (as month branch): Wu 7 days; Jia 5 days; Ren 18 days
Image poem (From the Yuan Hai Zi Ping)
「登明之位水源深,雨雪生寒值六陰;必待勝光方用土,不逢傳送浪多金。五湖歸聚原成象,三合羈留正有心;欲識乾坤和煖處,即從艮震巽離尋。」
Hai is the wellspring of early winter at full yin. It hides Jia wood and joins Mao and Wei in a wood frame; a cold chart welcomes eastern and southern luck.
Commanding-stem days follow the common table; sources differ by a day or two. The first ten days of the Shen month belong to Wu and Ji earth.
More topics
- The Four Pillars
- The Ten Day Masters
- The Ten Gods in BaZi
- The Five Elements and Favourable Elements
- BaZi Symbolic Stars and the Twelve Stages
- Branch Interactions
- Void (Kong Wang)
- Seasonal Adjustment
- Structures
- Key ideas of the Di Tian Sui
This is fixed text compiled from general convention, not a reading of any individual chart and not a prediction. For important decisions, please consult qualified professionals.