Millennia-old astrology meets AI chart casting — 12 palaces × 14 major stars × the Four Transformations, read in depth
What is Zi Wei Dou Shu?
- Zi Wei Dou Shu (Purple Star Astrology) is one of the core systems of traditional Chinese metaphysics, dating back to the Tang and Song dynasties. Anchored by the Zi Wei (Purple) star, it uses 14 major stars plus minor stars — more than 100 in total — and casts a 12-palace birth chart from your date and time of birth. Alongside Ba Zi (the Four Pillars), it is one of the two great schools of fortune reading in the Chinese-speaking world.
What do the 12 palaces represent?
- Life, Siblings, Spouse, Children, Wealth, Health, Travel, Friends, Career, Property, Fortune and Parents — each palace stands for one facet of life. The combination of major stars and the Four Transformations (Hua Ji / Hua Lu / Hua Quan / Hua Ke) within a palace reveals the character and direction of that facet. The Life, Career and Wealth palaces form the core of work and money; the Spouse, Children and Fortune palaces form the core of love and family.
How does Zi Wei differ from Ba Zi?
- Zi Wei defines your pattern through stars and palaces — a more structural view, well suited to seeing the big picture, your life's main axis, and the balance across all 12 facets. Ba Zi works from the Five Elements and the Heavenly Stems and Earthly Branches to project year-by-year fortune — a more dynamic view, well suited to near-term timing. Masters traditionally use both to cross-check each other. Xuanzhang unlocks the full 12-palace AI reading for Zi Wei at HK$18; Ba Zi (the Four Pillars) is now live too.
Why is AI chart casting better than casting by hand?
- Casting the chart is purely mechanical computation — Xuanzhang uses the open-source iztro engine, which follows the traditional Tang-Song rules exactly, gives the same result for every user, and never misremembers a formula. AI then translates each palace's combination of stars into grounded, practical life insight, producing a structured 3,000+ word report in about 30 seconds. A traditional master's casting and reading often costs HK$500–2000 per session; AI is more consistent than doing it by hand and over 90% cheaper.
What's included in the HK$18 Zi Wei report?
- Four chapters: (1) a whole-chart overview — your Life Palace's lead star and core temperament; (2) the arc of your major life cycles — youth, midlife and later years; (3) a palace-by-palace AI reading of all 12 palaces — 30 to 220 words of analysis each; and (4) your natural strengths, life challenges, a guide for the road ahead, and one shareable line. Pay once and keep access forever, regenerate anytime, and download a 9:16 chart card to share.