Qi ao g incarnation
Explanation:
Broken bones suck bone marrow. Metaphor exploitation and oppression is extremely cruel.
Source:
Song Shi Puji's "Five Lights Meeting Yuan" Volume 1: "The ancients sought the Tao, knocked the bone to suck the marrow, and pricked the blood to relieve hunger."
Example:
Duck's paw is rich in collagen, which is equivalent to bear's paw with the same quality. Paws are the basic organs of exercise, with many tendons, thick skin and no meat.