What Is the Twelve Longevities?

What is Twelve Longevity Stages?

The Twelve Longevities (shí èr cháng shēng), also called the Twelve Palaces or Twelve Phases, is a set of states in Bazi metaphysics that describes how the energy of a Heavenly Stem (or the Five Elements) strengthens and weakens across the twelve Earthly Branches. It uses the stages of a human life as an analogy for the birth and death of energy: Longevity (birth), Bath (infant bathing), Headband (youth tying the cap), Official (adulthood entering office), Prosperity (prime of life), Decline, Sickness, Death, Tomb, Extinction, Fetus, and Nourishment. These twelve phases cycle in sequence, corresponding to the rhythm of the Five Elements’ energy through the twelve months of the year or the twelve positions of the Earthly Branches.

The Twelve Longevities are not an independent tool for judging a destiny. They are a scale for measuring “how much power a given Heavenly Stem has at a given Earthly Branch.” They fill in the details that a simple look at the branch’s element cannot express: Jia Wood is at Longevity in Hai, at Official in Yin, at Prosperity in Mao, at Death in Wu, and enters the Tomb in Wei — all branches, yet Jia Wood’s state on each is radically different. This scale is especially critical for judging the Day Master’s root energy and for understanding the energy fluctuations of the Major Life Cycles and annual flows.

How to find your Twelve Longevity Stages

To find your own Twelve Longevities, look at where the Day Master (the day stem) falls in each of the four branches. The steps:

Determine the Day Master: for example, the day stem is Jia Wood, Ding Fire, or Geng Metal.
Consult a table: following the Day Master’s rule for starting Longevity — yang stems move forward, yin stems move backward — find the corresponding branch for each of the twelve phases: Longevity, Bath, Headband, Official, Prosperity, Decline, Sickness, Death, Tomb, Extinction, Fetus, and Nourishment.
Observe the four branch positions: what phase is the Day Master in at the year branch, month branch, day branch, and hour branch?
Synthesize the reading: if the Day Master is at Official or Prosperity in the month branch, it is “receiving the seasonal command”; if at Longevity or Headband, it “has root”; if at Decline, Sickness, Death, or Tomb, it “has lost the seasonal command and its ground.”

The Bazi tool in unMing automatically marks the Day Master’s Twelve Longevities state in each of the four branches after chart calculation, so no manual table lookup is needed.

Types and key features of Twelve Longevity Stages

The Twelve Longevities are divided into four groups of three phases each, forming a complete energy cycle.

Growth phase: Longevity, Bath, Headband

Longevity — the position of birth. The nascent energy is fresh and forceful, indicating new opportunities and new vitality. For example, Jia Wood’s Longevity is in Hai — winter water nourishes spring wood, the very moment when wood energy first stirs. Bath — the “Peach Blossom” position, an image of an infant being bathed. It also governs desire and fluctuation; in modern readings it is seen as a position of volatility. Headband — the youth’s coming-of-age ceremony. The energy is ready to act, indicating preparation and the first signs of emergence.

Strong phase: Official, Prosperity

Official — entering adulthood and taking office, indicating real authority and responsibility. Also called the “Salary position.” When the Day Master is at Official in the seasonal commander, it means the native receives salary. Prosperity — the strongest position in a lifetime, the peak of power. Jia Wood’s Prosperity is in Mao, Bing Fire’s in Wu, Geng Metal’s in You, Ren Water’s in Zi — each element in its own exclusive position. Prosperity indicates authority and achievement, but excessive strength also carries the risk of standing alone on a peak.

Decline phase: Decline, Sickness, Death

Decline — the beginning of decline after the peak. Energy is dropping but still has some reserve. Sickness — a deeper decline, like a person who is ill, with limited movement and a need for nourishment. Death — the position where energy ends. If the Day Master encounters Death in the life configuration, it needs Resource and Peer stars for rescue. For example, Jia Wood dies in Wu — Wu fire drains Jia’s energy, a blazing fire consuming wood.

Storage and rebirth phase: Tomb, Extinction, Fetus, Nourishment

Tomb — entering the tomb for storage. Energy temporarily recedes but does not disappear entirely. The four “reservoirs” among the branches (Chen, Xu, Chou, Wei) are each the tomb of one of the Five Elements. Extinction — complete dissipation, the position where energy returns to zero. Fetus — the position of renewed gestation, where energy gathers again in the womb. Nourishment — the fetus is about to take form, energy is about to be reborn. From Nourishment comes Longevity, and the cycle begins again — the circle of the Twelve Longevities closes here.

How Twelve Longevity Stages shapes personality, career, and relationships

The Twelve Longevities provide a fine-grained scale of energy that runs through the reading of a life configuration and the interpretation of Major Life Cycles and annual flows.

Judging the Day Master’s strength

Among the “four factors” for determining a strong or weak Day Master, “obtaining ground” is measured through the Twelve Longevities. If the Day Master is at Longevity, Headband, Official, or Prosperity in the day branch or another branch, it “has root.” If it encounters Decline, Sickness, Death, Tomb, or Extinction, it “has no root” or “shallow root.” A Day Master with root in many places in the life configuration is strong; one with root in few places is weak.

Refining the power of the Ten Gods

It is not only the Day Master whose power can be measured. Each of the Ten Gods can also be assessed by the Longevity state of its Heavenly Stem in each Earthly Branch. For example, if the Output star Jia Wood appears in the Heavenly Stem, and the life configuration also has Yin or Mao branches to support it (Official or Prosperity), the Output star’s power is greatly increased. If only Wu or Wei branches are present (Death or Tomb), the Output star, though exposed, is weak and cannot function effectively. This is an essential tool for in-depth analysis.

Reading Major Life Cycles and annual flows

Major Life Cycles and annual flows also act on the Day Master through the Twelve Longevities. A Jia Wood Day Master entering a Hai cycle — Longevity in Hai — means the energy is just beginning to stir, favorable for starting a new career. Entering a Wu cycle — Death in Wu — requires special attention to the risk of excessive drainage, health problems, and poor judgment. The same logic applies to annual flows: the Longevity state of the year’s branch determines the Day Master’s basic energy level for that year.

Reflections on personality and health

The Twelve Longevities position where the Day Master sits (the day branch) — also called “self-sitting” — is often seen as the fundamental marker of the native’s inner energy. A Day Master self-sitting at Prosperity tends to be confident and active; self-sitting at Decline or Sickness tends to be quiet and introspective; self-sitting at Tomb tends to be conservative and restrained. On the health level, if the Day Master encounters Death, Tomb, or Extinction too often across the four pillars, it often indicates a constitution that is on the weaker side, with energy that is hard to sustain.

Classical sources: Twelve Longevity Stages in the canon

The generation, prosperity, tomb, and extinction of the Five Elements each have their own basis; yang moves forward, yin moves backward, circulating through the twelve palaces.
五行之生、旺、墓、绝，各有所宗；阳顺阴逆，周流十二宫。
— The Longevity rule of the Zi Ping method (see Yuan Hai Zi Ping · “On the Twelve Positions”)

This passage states the two core rules of the Twelve Longevities: first, each of the Five Elements has its own belonging — each element has its own positions of generation, prosperity, tomb, and extinction among the twelve branches; second, yang moves forward, yin moves backward — yang stems advance in the order of the twelve branches, while yin stems move in the reverse direction. The second rule is a point of contention between traditional metaphysics and modern Zi Ping practice: mainstream modern practice mostly follows the theory that “the five yang follow the energy, the five yin follow the momentum,” meaning that yin stems also start Longevity along the same forward path as their corresponding yang element, for the sake of theoretical simplicity and empirical reliability.

Official means dwelling in one’s own position and receiving salary; Prosperity means reaching the extreme, from which the opportunity for decline arises; Death means the form is exhausted and the spirit stops; Tomb means things return to their storage.
临官者，居其本位而得禄；帝旺者，极其所至而生衰之机；死者，形尽而神止；墓者，物归其藏。
— Traditional interpretation of the Twelve Palaces (see San Ming Tong Hui · “On the Twelve Phase Stars”)

San Ming Tong Hui uses concise language to point out the essential meaning of several key phases. “Official receives salary” — this explains why the Official position of the ten stems is also called the “Salary position.” “Prosperity gives rise to decline” — the principle that things reverse at their extreme is embodied here, and it is also the reason the ancients did not necessarily consider Prosperity auspicious, but rather a position requiring caution. “Death is not the end” and “Tomb is not the final stop” — energy is merely stored away, not annihilated. These interpretations provide a philosophical foundation beneath the practical application.

Common misconceptions about Twelve Longevity Stages

A common error: blindly favoring Prosperity, believing the Day Master should be as strong as possible. In fact: the quality of the Day Master does not lie in absolute strength or weakness, but in balance with the entire life configuration. A Day Master that is already too strong, when encountering Prosperity, may instead suffer from excessive dominance — rash decisions, interpersonal conflict, and overburdened health. A Day Master that is weak can only stretch out when it encounters a Prosperity cycle. Prosperity is a phase label, not a synonym for “good.”

A common error: treating “Death,” “Extinction,” and “Tomb” as genuinely inauspicious. In fact: the names of the Twelve Longevities are metaphors for phases of energy, not verdicts on the outcome of a destiny. “Death” is merely a temporary pause in energy, “Extinction” is a return to zero, and “Tomb” is storage. When a life configuration needs to contract, the Tomb position is exactly what is called for. When the Day Master needs external support, the Death or Extinction position is not necessarily unlucky — the key is whose Death position it is and what role it plays in the structural configuration.

A common error: looking only at the Twelve Longevities of the Heavenly Stem itself, ignoring the hidden stems. In fact: the hidden stems within an Earthly Branch each have their own Twelve Longevities positions. To analyze the power of an Earthly Branch, one must look not only at the surface stem and branch but also at where each hidden stem within that branch is at Longevity, Decline, or Sickness — this is an indispensable layer of rigorous analysis.

Frequently asked questions

Are the Twelve Longevities only used for Heavenly Stems, or for the Five Elements as well?

Both. Traditionally, there is the rule “yang stems move forward, yin stems move backward” — yang stems start Longevity in order, yin stems start in the reverse direction. However, there is also a school that holds “the five yang follow the energy, not the momentum; the five yin follow the momentum, not the energy,” meaning that yin stems also follow the same Longevity starting method as the yang element of the same phase. Mainstream Zi Ping mostly uses “the element of the same pillar determines Longevity” — that is, the element of the Day Master’s stem determines the Longevity position.

Why are they called “Longevity,” “Prosperity,” “Tomb,” and so on?

The Twelve Longevities imitate the stages of a human life: Longevity is birth, Bath is infant bathing, Headband is the youth’s coming-of-age ceremony, Official is entering society as an adult, Prosperity is the prime of life, Decline is the beginning of decline, Sickness is illness, Death is the end of life, Tomb is burial, Extinction is the dissipation of the form, Fetus is renewed gestation, and Nourishment is the fetus taking shape. The cycle is endless, corresponding to the rhythm of the Five Elements’ generation, prosperity, tomb, and extinction across the twelve Earthly Branches.

Which phase in the Twelve Longevities is the best?

There is no absolute “best.” Prosperity, which appears glorious, can lead to excessive dominance and breakage if the Day Master is already too strong. Tomb, which appears decayed, can be useful if the life configuration needs to store things away. Each phase has its appropriate context: Official and Prosperity are favorable for displaying talent; Longevity and Headband are favorable for starting and growing; Decline and Sickness are favorable for quiet reflection; Tomb and Extinction are favorable for storing resources.

Is there a difference between Longevity falling in the day branch versus the year branch?

A significant difference. The day branch is the Spouse Palace and the self-sitting position. Longevity in the day branch — “day sitting Longevity” — indicates that the native has a natural power of generation and that their energy will not fade in later years. Longevity in the year branch indicates that the early environment was nourishing. In the month branch, it indicates that energy begins to stir in young adulthood. In the hour branch, it indicates that the later years have continuity. The position determines which stage of life the Longevity energy acts upon.

Is it a good thing when a Major Life Cycle or annual flow reaches the Day Master’s “Prosperity”?

Not necessarily. When the cycle reaches the Day Master’s Prosperity position, the Day Master’s power peaks. If the life configuration originally has a weak Day Master, this is a powerful boost, and the cycle is generally smooth. If the Day Master is already very strong, encountering Prosperity again leads to “excessive dominance,” which may manifest as rash decisions, interpersonal conflict, or overburdened health. A Prosperity cycle is like stepping on the accelerator — how hard you press depends on the chassis, that is, the balance of the life configuration itself.

See your Twelve Longevity Stages in unMing

The Bazi tool in unMing marks the corresponding Twelve Longevities phase for the Day Master at each pillar’s branch after chart calculation. A good starting point for observation: look at the Day Master’s Longevity state in the month branch. The month branch is the seasonal commander. If the Day Master is at Official or Prosperity there, it “receives the seasonal command”; if not, it “loses the seasonal command” — this directly determines the basic judgment of whether the Day Master is strong or weak. Then look at the Day Master’s phase in the day branch (self-sitting) — that is the most intimate energy background of the native.