Start at Yin, move forward by the lunar month, then step back by the birth hour.
The previous chapter showed that the twelve cells stay fixed. What makes each chart different comes down to which cell becomes the Life Palace. Here you will set it yourself — the first and most frequently used procedure in Zi Wei Dou Shu.
The rule takes two lines: set the Yin (寅) palace as the first lunar month and count forward to the birth month, then count backward from there by the birth hour. The cell where you land is the Life Palace. Forward follows the Earthly Branch order — Yin, Mao, Chen and onward — while backward goes the other way.
1. Place your finger on the Yin palace and count it as the first lunar month.
2. Count forward to the Lunar birth month. For lunar month 4, count Yin → Mao → Chen → Si and stop on the fourth cell, Si (巳).
3. Treat that stopping point as the Rat hour, then count backward to the birth hour. For a Si-hour birth: Si (Rat hour) → Chen (Ox hour) → Mao (Tiger hour) → Yin (Rabbit hour) → Chou (Dragon hour) → Zi (Snake hour). You move back five cells.
4. The cell where you stop is the Life Palace.
Why begin at the Yin palace? Traditional calendars treated the Yin month — the first lunar month — as the beginning of the year. It has the same root as BaZi treating Ipchun as the new year. Zi Wei Dou Shu carries that convention into the first cell of its chart.
This shows why Zi Wei Dou Shu is especially sensitive to birth time. If the hour shifts by one cell, the Life Palace moves with it and all twelve palaces rotate one position. Two people born on the same day can have different charts just two hours apart. BaZi still has six characters without the hour, but Zi Wei Dou Shu cannot set up the chart itself.
To find the Body Palace from the same point, reverse only the direction. From the cell reached by counting to the birth month, count forward by the birth hour. The Life and Body Palaces therefore form a pair. For a Rat-hour birth, neither count moves, so the two overlap.
Once the Life Palace is set, the rest follow automatically, moving backward: Siblings → Spouse → Children → Wealth → Health → Travel → Friends → Career → Property → Fortune → Parents. The order is the same for everyone, so one Life Palace cell determines all twelve palaces. Next, we prepare to place the stars by finding the Five-Element Bureau.
Enter your birth date and birth time to see where your Life Palace stands and how the count reaches it.
This content is for reference and entertainment, based on traditional Chinese metaphysics and astrology.