Huangdi Neijing
The name "Neijing tu" combines "nei" "inside; inner; internal", "jing" "warp (vs. woof); scripture, canon, classic; (TCM) meridian; channel", and "tu" "picture; drawing; chart; map; plan". This title, comparable with "Huangdi Neijing" 黃帝內經 "Yellow Emperor's Inner Canon", is generally interpreted as a "chart" or "diagram" of "inner" "meridians" or "channels" for circulating "qi" in "neidan" practices.