How to Read a Zi Wei Dou Shu Chart: Palaces, Stars and San Fang Si Zheng

What information do I need to chart?

Before charting, prepare your birth date (solar or lunar), birth time (as precise as possible), and birthplace (for timezone and city selection). If the birth time is uncertain, ask family members, because the birth hour determines the Ming Palace.

The chart's Ming and Body Palaces are derived from the lunar month, so a birth date may be entered in either the solar or the lunar calendar. A timezone or city selection is used to align the local birth time, so the clock time you record is placed on the correct hour branch. A birth recorded near an hour boundary can shift between adjacent branches if the time is off by only a few minutes, so a well-estimated hour is more useful than a precise-looking but unverified minute.

Chart structure: palaces, stars, and transformations

A complete Zi Wei Dou Shu chart has three layers:

• Palaces: twelve palaces arranged along the earthly branches; the Ming Palace is the reading's starting point
• Stars: fourteen major stars plus supportive and malefic stars distributed across the palaces
• Four Transformations: Hua Lu, Hua Quan, Hua Ke, and Hua Ji, four energy markers showing how star energy flows

All three layers together make a complete reading. Reading stars without transformations, or the Ming Palace without its trine, leads to partial conclusions.

When you first open a chart, begin at the Ming Palace and note the major star that governs it, then look outward to the palaces it reads through the trine. The twelve palaces are not isolated; each domain answers a different question, but the Ming, Wealth, and Career Palaces carry the most weight in a general reading because they describe the person, their resources, and their activity in the world. The Four Transformations then mark where energy is added, commanded, refined, or challenged, so two charts with identical star placement can still read differently once the transformations are applied.

What are the Three Harmonies and Four Cardinals?

San Fang Si Zheng refers to the palaces forming an equilateral triangle with a given palace plus its opposite palace. For the Ming Palace, the trine consists of the Ming, Wealth, and Career Palaces; adding the opposite Travel Palace completes the set. The Ming Palace trine is called the "chart's main axis" and must be read together.

The trine method works because the palaces in a triangle share the same element and are considered to support one another. When the Ming Palace is read, its trine partners fill in what the Ming Palace alone cannot show: how the person earns and keeps resources, and how they act in public life. The opposite palace, added for the Four Cardinals set, reveals the tension or complement between the self and what lies across from it. A strong Ming Palace with a weak trine, or a bright trine with a quiet Ming Palace, should be read as a whole rather than as separate verdicts on each palace.

How do major and minor stars combine?

Major stars define quality; supportive stars (Zuo Fu, You Bi, Wen Chang, Wen Qu, Tian Kui, Tian Yue) and malefic stars (Qing Yang, Tuo Luo, Huo Xing, Ling Xing, Di Kong, Di Jie) define intensity. For example, Zi Wei in the Ming Palace with Zuo Fu and You Bi suggests leadership with support; with malefic stars, impatience or setbacks may be layered on top.

Beyond counting supportive versus malefic stars, readers weigh each star's brightness, which varies by palace. A star in a palace where it is at its strongest reads more prominently than the same star in a weaker palace, and the supporting stars can either amplify that strength or soften a shortcoming. For example, Tai Yang is traditionally favored in the Mao, Chen, Si, and Wu palaces of the day-side, while Tai Yin is favored at night; keeping these conditions in mind prevents over-reading a single star in isolation.

How do decadal and annual limits work?

Decadal limits move in ten-year units from the Ming Palace, while annual limits observe the year's active palace. The decadal palace's stars and transformations set the decade's theme; the annual limit layers on top, forming a two-level structure of environment plus yearly change. This dynamic layer is the heart of Ziwei AI's interpretation module.

The direction of movement is fixed by the year stem's polarity and the person's gender, which is why two charts born in the same hour can advance their decadal limits in opposite directions. Each ten-year palace reuses the full reading method — major star, supporting stars, and transformations — so a decadal limit is essentially a small chart of its own placed over the natal chart. Annual limits then refine the current year within that decade, and together the three layers move from lifetime baseline to ten-year theme to single-year detail.

Disclaimer

Content on this page is for traditional cultural study and entertainment only and does not constitute medical, legal, investment, or psychological advice.