Word origin · etymology
Chinese 天梁; Chan explains 梁 as a structural beam and calls the star “Heavenly Beam.”
This documents the author’s name explanation, not the compound’s earliest specialist use; that historical origin remains unverified.
How we know · epistemology
Contemporary explanation of traditional chart symbolism.
A protective metaphor is not a promise of safety, recovery or longevity.
Connected concepts
Terms used in this explanation
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.