Tai sui, also known as meat ganoderma lucidum, is said to be the elixir of life that Qin Shihuang is struggling to find. Li Shizhen's Compendium of Materia Medica records Ganoderma lucidum, which is classified as "Ganoderma lucidum" in the Department of Vegetables. Edible and medicinal, it is regarded as "the top grade of this classic" and has the effect of "strengthening the body and prolonging life after long-term eating". According to Shennong's Classic of Materia Medica, "Ganoderma lucidum is non-toxic, nourishing, benefiting essence and qi, increasing wisdom, curing the knot in the chest and strengthening the body for a long time." Shan Hai Jing called it "seeing meat", "gathering meat", "letting the old age" and "sealing", which was a delicious health care for ancient emperors. Tai sui is very rare and is the top grade of all kinds of medicinal materials. It is recorded in ancient books that Tai Sui is flat, bitter and non-toxic, and has the value of invigorating spleen, moistening lung, tonifying kidney and benefiting liver.

Modern science has found that Ganoderma lucidum is a large myxomycete complex between protozoa and fungi. Its structure is not composed of a single cell, but a polymer composed of bacteria, myxomycetes and fungi. Studies have proved that meat ganoderma lucidum feeds on tiny organisms such as bacteria, yeast and mold spores, and takes cellulose, chitosan and chitin as nutrients. It is rich in protein, nucleic acid, Candida and Geotrichum candidum. Its cells contain photosynthetic pigments. According to the analysis of life origin and evolutionary pedigree, it should be located in bacteria (algae).

Between plants, protozoa and animals. There are both vegetative bodies and solid human bodies, but unfortunately, after biological evolution reached this level, it stopped evolution because of the limitation of external light. Therefore, biologists call it "blind branch", which exists in life.

A fork in the road of evolution. To the left, it will develop into the plant kingdom, to the right, it will develop into the animal kingdom, and it will become a fungus like mushroom Ganoderma lucidum, which is the fourth non-plant, non-animal and non-fungus in nature.

Life form is the oldest living specimen of paleontology discovered so far, and it is the ancestor of human beings and all animals and plants.