Medicinal use of five-needle pine: Li Shizhen said in Compendium of Materia Medica: "Pine leaves, with loose hair, are warm in nature, bitter in taste and nontoxic, and enter the meridians of liver, kidney, lung and spleen to treat swelling and toxin of viscera and wind-cold-dampness syndrome." It is also said that it can cure swollen blisters, promote hair regeneration, strengthen liver, kidney, heart, spleen and lung, and satisfy hunger and prolong life. Sun Simiao also has a special liking for pine trees, and uses the relevant parts of pine trees for curing diseases and keeping in good health, and establishes natural health-keeping methods such as "taking pine nuts, pine leaves and rosin".