Plain-language reference
Common Tong Shu and BaZi terms.
Definitions are intentionally concise. Read the methodology for the exact assumptions used by this release.
- Tong Shu
- A date-based Chinese Almanac reference that organises traditional calendar markers and activity guidance.
- BaZi / Four Pillars
- A traditional birth-chart framework built from the year, month, day and hour pillars.
- Day Officer
- A day-cycle marker used by the approved public method as one general activity-suitability signal.
- Solar term / Jie Qi
- A seasonal boundary used by the method for solar-year and solar-month handling.
- Day Pillar
- The stem-and-branch pair assigned to a civil date under the approved day-cycle convention.
- Clash
- A traditional branch relationship shown as bounded context; it is not a guaranteed prediction.
- Sha direction
- A traditional directional marker shown as informational reference, not a safety instruction.
- Void
- A traditional branch-cycle marker shown as informational context under the approved method.
- Reference hour
- A general time window generated for a public date; it is not a personal or purpose-specific guarantee.
- Personal suitability
- An authenticated comparison of approved personal inputs with general date facts; it is never indexed publicly.