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BaZi glossary · Twelve Life Stages

Birth (长生) in BaZi

The first stage of the life cycle

Short answer

Birth (Chang Sheng, 长生) is the first of the Twelve Life Stages, the moment new life appears: not yet strong, but lively and growing. A Day Master sitting on Birth, or meeting it in the chart, is traditionally read as having roots and support, a gentle temperament and staying power.

At a glance

Group
Twelve Life Stages · stage 1
Life-cycle image
Being born
Keywords
beginnings, growth, support, gentleness, staying power
Strength
Leaning strong: rooted, with strength building
Related ideas
Yin, Shen, Si and Hai are the Birth branches of the Yang stems, and the “four growth branches” where the Travelling Horse falls

How to find the Birth

The life stages are counted from the Day Master: Yang stems run forward from their Birth branch, Yin stems run backward (the common method, and the one FateSign's calculator uses). Jia's Birth is at Hai; Yi's Birth is at Wu, counting backward. The table shows the Birth branch for each of the ten Day Masters.

Where Birth falls for each of the ten Day Masters
Day MasterBranch at Birth
甲 Jia · Yang Wood亥 Hai
乙 Yi · Yin Wood午 Wu
丙 Bing · Yang Fire寅 Yin
丁 Ding · Yin Fire酉 You
戊 Wu · Yang Earth寅 Yin
己 Ji · Yin Earth酉 You
庚 Geng · Yang Metal巳 Si
辛 Xin · Yin Metal子 Zi
壬 Ren · Yang Water申 Shen
癸 Gui · Yin Water卯 Mao

What Birth means traditionally

Birth is the start of a new life: everything is just beginning, full of potential. A Day Master sitting on Birth is traditionally described as gentle, optimistic and approachable, supported by elders and surroundings, with the stamina to grow steadier over time.

Its strength is the strength of something growing, not the peak. Its value is rootedness and continuity: meeting Birth in a chart is often read as a force that has a source and will last.

How to read it in a chart

Day branch
a Day Master sitting on Birth (e.g. Bing Yin, Ren Shen) is traditionally read as rooted and energetic, and often as a supportive, harmonious marriage.
Month branch
meeting Birth in the month means the birth season nourishes the Day Master, so it is unlikely to be too weak.
Year and hour pillars
early environment and later life or children respectively; Birth there is often read as support and fresh openings in that phase.
Luck pillars and years
a Birth period is traditionally seen as a new start, good for launching plans and learning something new.

Related ideas

The four growth branches
Yin, Shen, Si and Hai are the Birth branches of the Yang stems and the starting points of the three-harmony frames (Shen of Shen-Zi-Chen, Yin of Yin-Wu-Xu, and so on).
Travelling Horse
the Travelling Horse star also falls on Yin, Shen, Si or Hai, so Birth branches are often linked with movement and travel.
Life stage vs. self stage
the calculator's life stage row shows the Day Master's stage at each branch; the self stage row shows each pillar's own stem on its own branch. Birth can appear in either.

Common misconceptions

  • Birth does not mean long life. It is the “being born” position of the cycle and says nothing about lifespan.
  • Birth is not the strongest stage. The peaks are Officialdom and Prosperity; Birth is where strength starts to build.
  • Schools differ on the Yin stems: some say Yin and Yang stems share the same Birth and Death. FateSign counts Yin stems backward, like most calculators.

Frequently asked questions

How do I see Birth in my own chart?

Enter your birth details in the free calculator. The life stage row shows your Day Master's stage at each branch, and the self stage row shows each pillar's stem on its own branch. You can also use the table above.

Is it good for the Day Master to sit on Birth?

Traditionally it is a stable, supported position. But it is only one factor in judging the Day Master's strength, alongside the month, the balance of the phases and the overall structure.

How are Birth and the Travelling Horse related?

The Yang stems' Birth branches, Yin, Shen, Si and Hai, are exactly where the Travelling Horse can fall, so Birth branches are often linked with change, travel and new starts. They are separate ideas, found in different ways.

See your Day Master's life stage in every pillar

The free calculator shows the Day Master's life stage in every pillar, and each pillar's self stage.

For cultural learning, self-reflection, and entertainment. AI interpretations may be incomplete or inaccurate and are not professional advice.