Four pillars, 8 characters
The Four Pillars are your birth year, month, day and hour. Each one is written as 2 Chinese characters: a sky sign on top and an animal sign below. 4 pairs make 8, which is what BaZi (八字) means.
Every character carries one of the five elements: Wood, Fire, Earth, Metal or Water. Reading how they feed and hold each other back across the 4 pairs gives a picture of your temperament, your strengths and the themes your chart keeps returning to.
What each pillar stands for
| Pillar | In plain words |
|---|---|
| Year | Your roots: family line, early life, the face you show the wider world. |
| Month | Your environment: parents, upbringing, the setting you grow and work in. It also sets the strongest force in your chart. |
| Day | You. The top character is your core element; the bottom one is often read as your closest partner. |
| Hour | Your later years: children, legacy, where you are heading. |
Don't know your birth hour? The other 3 pillars still find your core element and most of your mix. Read what changes without a birth time.
For the curious: stems, branches and the Day Master
The sky signs are the 10 Heavenly Stems (天干) and the animal signs the 12 Earthly Branches (地支). The stem of the day pillar is called the Day Master (日主). Months start at the solar terms (節氣) and the year at Li Chun (立春), the start of spring.




