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BaZi fundamentals in plain language — all original. From Heavenly Stems & Earthly Branches to Useful God selection, read in the recommended order and the skeleton of BaZi will stand.
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101 entries in recommended reading order
The ten Heavenly Stems and twelve Earthly Branches are the alphabet of BaZi: paired one-to-one, they form the sixty pairs of the sexagenary cycle, and a BaZi chart is simply four such Stem-Branch pairs.
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Wood, Fire, Earth, Metal, and Water are five basic qualities of energy, relating through "generating" (nourish and support) and "controlling" (restrain and shape) cycles — and all of BaZi is the art of reading how these two relationships play out.
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Take the Day Master (the Day Pillar's stem — "me") as the center, ask how each of the chart's other seven characters relates to "me," and sort them into ten roles: the Ten Gods.
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Converting a birth time into four Stem-Branch pairs — Year, Month, Day, and Hour Pillars — is called "casting the chart." BaZi is the *result* of the casting, not a computed destiny.
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Every Earthly Branch "hides" one to three Heavenly Stems inside it — the Hidden Stems. Never judge a branch by its surface element alone; there are residents in the inner rooms.
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Symbolic Stars are traditional "badges" the ancients attached to particular Stem-Branch combinations — each one suggesting an image. They are decorations on the chart, not verdicts: MoZhu treats them as auxiliary reference, never the main basis of interpretation.
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The Annual Pillar is simply the year's Stem-Branch (2026 is a Bing Wu year); each year a new "year star" takes its shift, and reading the year means reading how it interacts with your natal chart and Luck Pillars.
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The Twelve Stages describe a Heavenly Stem's "energy state" when it lands on each of the twelve Earthly Branches — like a human life: birth, growth, peak, decline, and return to the hidden.
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Ten Heavenly Stems pair with twelve Earthly Branches, so every ten-day cycle (*xun*) leaves two branches unpicked — those two absent branches are the Void Branches. Also called Xun Kong (Empty of the Cycle) or Tian Zhong (Heaven's Middle); collectively the Six Jia Void. A Void Branch is a *temporarily vacant seat*, not "nothing there."
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Earthly Branches "combine" (band together), "clash" (collide head-on), and also "punish" and "harm" each other — the basic grammar for reading how chart, Luck Pillars, and years interact.
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Luck Pillars are ten-year Stem-Branch chapters of life: the natal chart is the "foundation," the Luck Pillar is the "climate." The direction — forward or backward — depends on the year stem's polarity and your gender: yang-year males and yin-year females go forward; yin-year males and yang-year females go backward.
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Chart Pattern is the method for reading a chart's "skeleton": look at what Ten God the Month branch reveals, then give the chart its "surname" — surnamed Officer, Wealth, or Seal.
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Seasonal Regulation reads a chart's "temperature and humidity": too cold, warm it with Fire; too hot, cool it with Water — like fitting the chart with an air conditioner, aiming for comfort.
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The Useful God (Yong Shen) is the element (or Ten God) that helps a chart most; finding it is writing the chart's "prescription."
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The NaYin of the Geng Chen and Xin Si stem-branches: gold still in the ore — pure in substance, its edge not yet showing.
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One of the Ten Gods: same element as the Day Master, same polarity — e.g., a Jia Day Master meeting Jia.
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The seventh of the Twelve Stages: the Five Elements' qi weakened and sluggish — Jia Wood's Sickness falls on Si.
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The first of the Twelve Stages: the Five Elements' qi just born, like a newborn child or a sprouting plant.
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The NaYin of the Wu Yin and Ji Mao stem-branches: earth of the city walls — tall, solid, immovable.
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The NaYin of the Wu Chen and Ji Si stem-branches: branches shaking in the wind, boughs holding up the moon — the image of a great forest.
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The fifth of the Twelve Stages: the Five Elements' qi at its fullest — yang stems move forward, yin stems move backward.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Xun palace, element Wood.
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Twenty-eight groupings of fixed stars along the ecliptic, rotating in turn with the Seven Luminaries.
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When the Useful Line is absent from a hexagram, a line of the same element lies hidden beneath another line — that hidden line is Fu Shen.
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The third of the Twelve Stages: like a young man receiving his cap and sash — maturing, and beginning to accept restraint.
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A Symbolic Star read from the year branch: Rat, Ox, and Pig years look for the Dog (Xu); Tiger, Rabbit, and Dragon years look for the Ox (Chou); Snake, Horse, and Goat years look for the Dragon (Chen); Monkey, Rooster, and Dog years look for the Goat (Wei). It is usually named together with the Lone Star.
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A Symbolic Star read from the year branch: Rat, Ox, and Pig years look for the Tiger (Yin); Tiger, Rabbit, and Dragon years look for the Snake (Si); Snake, Horse, and Goat years look for the Monkey (Shen); Monkey, Rooster, and Dog years look for the Pig (Hai). It is usually named together with the Widow Star.
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The NaYin of the Jia Zi and Yi Chou stem-branches: gold sunken in the sea — a treasure with a name but no visible form.
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Looked up from the Year Branch, counting backward through the branches starting at Mao; it is usually discussed together with Tian Xi (Heavenly Joy).
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The "grave storehouse" position of each Three Harmony combination — a branch that sits over the chart like an imperial canopy.
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The NaYin of the Ren Shen and Gui You stem-branches: the White Emperor holding sway, hardness forged through a hundred refinings — the image of a sword's edge.
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The NaYin of the Bing Zi and Ding Chou stem-branches: fine ripples ringed by mountains, breaking and parting as they strike the stones — the image of a mountain stream.
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One of the Ten Gods: same element as the Day Master, different polarity — e.g., a Jia Day Master meeting Yi.
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The "Extinction" position of each Three Harmony combination: Water looks for Snake (Si), Fire looks for Pig (Hai), Metal looks for Tiger (Yin), Wood looks for Monkey (Shen) — using the year or day branch to set the combination.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Li palace, element Fire.
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One of the Eight Doors of Qi Men Dun Jia — its imagery is shock, sound, and speech.
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The line that controls the Useful Line — the restraining force inside the hexagram's network of generation and control.
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The tenth of the Twelve Stages: the previous movement of qi gathered up and cut off — Jia Wood's Extinction falls on Shen.
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The second star of the Northern Dipper, element Water–Metal, whose transformed breath is Darkness.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Qian palace, element Metal.
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The fifth star of the Northern Dipper, element Yin Fire, whose transformed breath is Confinement.
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The fourth of the Twelve Stages, also called "Establishing the Salary": the Day Stem arrives at its salary position — Jia Wood's Arrival falls on Yin.
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Five categories of lines — Parents, Siblings, Wealth, Officials, Children — assigned by how each line's element relates to the palace element.
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The single line in a hexagram that stands for the matter being asked — fix the Useful God before reading anything else.
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The NaYin of the Geng Wu and Xin Wei stem-branches: the broad earth that bears all things — soil along the roadside.
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Read from the Day Master against the chart's branches — Jia finds Yin, Yi finds Mao, Bing and Wu find Si, Ding and Ji find Wu, Geng finds Shen, Xin finds You, Ren finds Hai, Gui finds Zi; "Lu" is the image of an official's salary, one's livelihood.
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The NaYin of the Bing Yin and Ding Mao stem-branches: heaven and earth as the furnace — the fire that smelts the myriad things.
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The ninth of the Twelve Stages, also called "Storehouse": where the Five Elements return to storage — Jia Wood's Grave falls on Wei.
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The second of the Twelve Stages: the Five Elements' qi freshly born and now bathed — classically also called "Defeat."
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An alternate system of Five-Elements assignments for the sixty stem-branches: thirty evocative group names.
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Twenty-two folk cautionary verses, arranged by the day's stem and branch.
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One of the Ten Gods: the element the Day Master controls that shares its Yin/Yang polarity — for a Jia Day Master, seeing Wu.
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One of the Ten Gods: the element that nourishes the Day Master with the same Yin/Yang polarity — also called Xiao Shen, the Owl Spirit; for a Jia Day Master, seeing Ren.
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The seventh star of the Northern Dipper, element Water, whose transformed breath is Expenditure.
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One of the Ten Gods: the element that controls the Day Master with the same Yin/Yang polarity — also called the Indirect Officer (Pian Guan).
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The sixth star of the Southern Dipper — the Dipper's high general — element Fire–Metal.
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The NaYin of the Jia Shen and Yi You stem-branches: the source that never runs dry, on which the myriad things depend — the image of living spring water.
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One of the Ten Gods: the element the Day Master produces with the opposite Yin/Yang polarity — for a Jia Day Master, seeing Ding.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Zhen palace, element Wood.
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The NaYin of the Jia Xu and Yi Hai stem-branches: blazing into a great flame, a beacon of light — fire burning on the hilltop.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Gen palace, element Earth.
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One of the Ten Gods: the element the Day Master produces that shares its Yin/Yang polarity — for a Jia Day Master, seeing Bing.
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The Shi line stands for the querent's side; the Ying line stands for the other party — the main axis for reading relationships in a hexagram.
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The sixth of the Twelve Stages: the turning point where the Five Elements' qi passes from flourishing to fading — Jia Wood's Decline falls on Chen.
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The eighth of the Twelve Stages: the Five Elements' qi exhausted and stored away — Jia Wood's Death falls on Wu.
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One of the Eight Doors of Qi Men Dun Jia — its imagery is withdrawal, stillness, and ending.
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The eleventh of the Twelve Stages: receiving qi and taking shape — new life beginning to quicken — Jia Wood's Conception falls on You.
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A Symbolic Star found by scanning the Day Master or year stem against the chart's branches, taking the image of all things protected from beginning to end.
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A lord star of the central heavens — the essence of the Sun, element Fire — in the numbers it lends its bearer an air of distinction.
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A lodge star of the central heavens, element Water, whose transformed breath is Wealth — lord of the Property palace.
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The first star of the Northern Dipper, element Water–Wood, whose transformed breath is Peach Blossom.
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Also called Xian Chi (the Xian Pool): it marks the Bath stage of the Three Harmony combinations — the image of the sun sinking into the pool where it bathes.
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Checked against the Four Pillars' stems and branches using the Month Branch, from the old rhyme that begins "first month: Ding; second month: in Kun."
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The Southern Dipper's commanding first star — lord and keeper of the Wealth palace — element Earth.
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The third star of the Southern Dipper, whose transformed breath is Goodness, element Yi Wood — governing intellect and planning.
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Tian Kui is an assisting star of the Southern Dipper in Zi Wei Dou Shu, element Ding Fire, tied to the lodge of examination honors and paired with Tian Yue as "Kui Yue".
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The second star of the Southern Dipper, element Earth, whose transformed breath is Shelter.
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The fourth star of the Southern Dipper, whose transformed breath is Blessing, element Ren Water — governing good fortune and easy rapport.
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The clash branch of the Red Matchmaker, named together with it; note that the classical texts also record a different "Heavenly Joy Spirit" found from the season — a separate system.
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The fifth star of the Southern Dipper, element Water, whose transformed breath is the Seal.
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Read from the Day Master or year stem against the chart's branches — the highest-ranked of all Symbolic Stars, remembered by a famous rhymed verse.
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Tian Yue is an assisting star of the Southern Dipper in Zi Wei Dou Shu, element Ding Fire, tied to the lodge of examination honors and paired with Tian Kui as "Kui Yue".
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A Symbolic Star read from the year or day branch, taking the image of loss and dissipation.
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The two great schools of BaZi reading: the Ren tradition takes the Day Master's Strength (Prosperous/Weak) as its governing principle, while the Xu tradition takes the month commander's eight structures as the body's frame.
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The Literary Star Noble (Wen Chang Gui Ren): the Arrival or Birth stage of the Day Stem's Eating God — the Symbolic Star linked to study, letters, and examinations.
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The lodge of examination success, element Metal — an auxiliary star of Zi Wei.
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The lodge of examination honors, element Water — an auxiliary star of Zi Wei.
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The sixth star of the Northern Dipper, whose transformed breath is Wealth, element Xin Metal — governing money and resolve.
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One of the Eight Doors of Qi Men Dun Jia, seated in the Kan palace, element Water.
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The twelfth of the Twelve Stages: the image of formation tended and raised — after which the cycle returns to Birth — Jia Wood's Nurturing falls on Xu.
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The NaYin of the Ren Wu and Gui Wei stem-branches: soft boughs trailing everywhere, rising and falling with the wind — the image of willow branches.
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The Day Stem's Peak stage: Jia's Blade is at Mao, Yi's at Yin, Bing and Wu's at Wu, Ding and Ji's at Si, Geng's at You, Xin's at Shen, Ren's at Zi, Gui's at Hai — the image of a blade's edge.
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The Clash of the Birth stage in the Three Harmony combinations — the image of roads traveled and horses galloping between relay stations.
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An assisting star of the Southern Dipper, element Water — a supporting star.
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Read from the month branch against the chart's stems — Yin, Wu, Xu months look for Bing; Shen, Zi, Chen months look for Ren; Hai, Mao, Wei months look for Jia; Si, You, Chou months look for Geng. Together with the Heavenly Virtue Noble it is called the "Heavenly and Monthly Virtues."
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The line that generates and supports the Useful Line — the Useful Line's source of strength.
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One of the Ten Gods: the element the Day Master controls with the opposite Yin/Yang polarity — for a Jia Day Master, seeing Ji.
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One of the Ten Gods: the element that controls the Day Master with the opposite Yin/Yang polarity — the ancients compared it to "a ruler in the state, an elder in the home."
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One of the Ten Gods: the element that nourishes the Day Master with the opposite Yin/Yang polarity — the source that gives the self life; for a Jia Day Master, seeing Gui.
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The first of the fourteen major stars of Zi Wei Dou Shu — hailed as the Celestial Emperor Star — element Earth.
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An assisting star of the Southern Dipper, element Earth — a supporting star.
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MoZhu is a cultural entertainment website. Charts are calculated by code and readings are generated by AI, for entertainment and cultural reference only. They are not guaranteed to be accurate, do not predict the future or promise any outcome, and are not medical, legal or financial advice. Please consult a qualified professional for important decisions.
