From the dialogue between Zibo and Huangdi in Huangdi Neijing, a source of Chinese medicine. The Yellow Emperor had six ministers in charge of medicine, the first of whom was Zeebe. After the Yellow Emperor unified the world, he "asked Zeebe", respected him as a teacher, and discussed medicine together, so that he could "taste all kinds of plants and herbs and prescriptions", answer questions about health care and the etiology, diagnosis and treatment of diseases, and clarify the truth.