The Yellow Emperor's Inner Canon, known as the "Huangdi Neijing" in Chinese, is one of the most ancient and revered texts in the realm of traditional Chinese medicine.

This foundational work is attributed to the legendary Chinese ruler and medical sage, Huangdi, or the Yellow Emperor, who lived around 2700 BCE.

The "Huangdi Neijing" consists of two main parts: the "Suwen" (Basic Questions) and the "Lingshu" (Spiritual Pivot), which together provide profound insights into the principles of health and healing.

In the "Suwen," the Yellow Emperor engages in a dialogue with his court physician, Qibo, exploring the fundamental concepts of Yin and Yang, the Five Elements, and the channels and collaterals (meridians) through which vital energy, or Qi, flows.