本文に書かれていること
Xuan Gui lives in the Guai waters near Mount Niuyang. It has a turtle-like form, a bird's head, a snake's tail, and a sound compared to splitting wood. It shares a paragraph with Lu Shu but belongs to the water; their settings and attributed uses should not be exchanged.
解釈の範囲
The closing claims about wearing it and hearing belong to ancient belief, not a treatment to follow. Anatomy and sound can be checked directly against the passage, while difficult terms require commentary instead of invented superpowers. SYNREX's preservation theme is contemporary and does not establish an ancient promise of immortality.