What characteristic is attributed to Jing?

The characteristic attributed to Jing is that it is coarse and dense. Jing, often translated as "essence," is considered one of the fundamental substances in Traditional Chinese Medicine and holds a vital role in health and vitality. It is thought to be a dense and tangible form of energy stored within the body, responsible for growth, development, reproduction, and the overall maintenance of life.

This conceptualization aligns with the understanding of Jing as being foundational and substantial in nature, forming a crucial base for other energies and substances in the body. Its density indicates its critical role in physical development and the body's inherent vitality. This is why considering Jing as coarse and dense accurately reflects its importance within the broader context of Traditional Chinese Medicine's theories on bodily function and health.

In contrast, the other options describe qualities that do not align with the traditional views on Jing. Rarified and fine, subtle and immaterial, and fluid and dynamic suggest characteristics of other forms of energy or substances such as Qi or Shen, rather than the grounding essence that Jing represents.