**1. Introduction**

Traditional Chinese medicine (TCM) is the precious treasure that Chinese nation accumulated in the process of struggling with disease for thousands of years, and she knows life and disease phenomenon in a unique perspective, is the important guarantee for the thriving of the Chinese nation, and is an immortal legend in the process of human civilization development. TCM is both a treasure trove of Chinese wisdom and the medical science based on ancient Chinese philosophy. TCM will provide new philosophical thinking and selective application for modern medicine. TCM theory on which it is based involves entities like Essence (Jing), Qi (Chi), and "meridians" that appear ambiguous, and the internal organs like the kidney and the spleen are understood very differently from those of modern anatomy. Even today TCM practitioners use these essential theories to understand, diagnose, and treat health problems.
