From the end of the Warring States Period to the unification of the Qin Dynasty, under the background of "the interweaving of alchemy and medical skills" and the "collision between legalist governance and life ethics", folk doctors grew from apprentices of alchemists traveling in the countryside to imperial doctors. In the process of breaking superstition and promoting medical skills, they understood that "physicians not only treat diseases and save people, but also protect the glimmer of dignity of life in troubled times", completing their growth and transformation from "asking for immortals" to "helping living people in the world".
