Kidney essence belongs to yin, kidney qi belongs to yang, deficiency of kidney essence means deficiency of kidney yin, and deficiency of kidney qi means deficiency of kidney yang. According to the theory of Yin and Yang in TCM, everything in the human body is composed of Yin and Yang, with Yang dominating the growth and initiative upward, while Yin dominating the convergence, quietness and downward.
Guiding opinions:
Clinically, kidney deficiency is mostly yin and yang deficiency. At this time, taking Jinkui Shenqi Pill can play the role of tonifying yin and yang.