This section acts as a catch-all for specific symptoms and acute conditions. It covers fevers, colds, poisons, mental health issues, and emergency treatments.

The text was written by , a royal physician to King Seonjo and later Gwanghaegun. Heo Jun was unique for his time—he came from an illegitimate background but rose to become the most respected medical scholar in Korea. He was deeply influenced by both Chinese medicine and indigenous Korean healing practices.

The (literally "Mirror of Eastern Medicine") is a Korean medical encyclopedia compiled in 1613. It is widely regarded as one of the most important classics of traditional Korean medicine (TKM).

In 2009, its historical and scientific value was recognized globally when it was inscribed on UNESCO’s Memory of the World Register , the first medical book to be included. Historical Origins and Purpose

: Focuses on the "internal" functions of the body, including the five viscera (liver, heart, spleen, lungs, kidneys) and the six bowels.