Meat Lingzhi, also known as Tai Sui, is the elixir of life that First Emperor of Qin sought in the legend. Li Shizhen did record meat Lingzhi in the Compendium of Materia Medica and included it in the "Zhi" category of the "Cai" department. It is edible and can be used as medicine. It is regarded as "the top medicine of the herbal classic" . It has the effect of keeping the body youthful and prolonging life if taken for a long time.