About the method and disclaimer

A reflective BaZi-inspired lens

How a reading is made

YUAN uses the birth date, time, selected time zone, and an approximate birthplace match to calculate a BaZi chart with Four Pillars, a Day Master, and Five Elements relationships. The current implementation uses the lunar-typescript calculation library and may apply a longitude-based true-solar-time adjustment when a location match is available.

The chart is converted into an allowlisted evidence structure. OpenAI then generates structured Free or Premium content under frozen prompts, schemas, validation, and safety rules. An optional personal question can guide the relevant reflection. AI-generated language can still be wrong, incomplete, or feel generic.

What the method cannot establish

How to use a reading

Keep what helps you reflect, question what does not fit, and compare any important conclusion with lived evidence and qualified human advice. You remain responsible for your choices.

Founder decision needed before Production

The named methodology owner, documented chart-validation standard, treatment of uncertain or unknown birth times, cultural-source review, and final claims language have not been formally approved in the repository. These need Founder and subject-matter review before Production.