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Guixin (Cinnamon Heart): It is extremely drying and tonifies Yang blood. It enters the Blood aspect of the Heart and Spleen. It can guide blood to transform into sweat or pus, and internally support carbuncles and smallpox sores (when used together with Dingxiang, it treats collapsed smallpox lesions). It eliminates stasis and generates flesh. It tonifies deficiency-cold. It disseminates Qi and Blood, benefits joints, and treats wind-bi, zheng jia (abdominal masses), dysphagia, abdominal fullness, and various pains in the heart and abdomen.

Guizhi (Cinnamon Twig): It is light, releases the muscle layer, and harmonizes Ying and Wei. Its flavor is acrid, sweet, and warm; its qi is thin and ascending/floating. It enters the Taiyin Lung meridian and the Taiyang Bladder meridian. It warms meridians and unblocks vessels, induces sweating and releases the muscle layer (it can benefit Lung Qi; as stated in the classics: "Acrid and sweet dispersing agents are Yang"). It treats headache due to wind-cold injury (it can induce sweating when there is no sweat). It treats spontaneous sweating due to cold damage (it can stop sweating when there is sweat; with Guizhi as the sovereign herb, Shaoyao and Gancao as assistant herbs, plus Shengjiang and Dazao, it forms Guizhi Tang, which harmonizes Ying and Wei and secures the exterior). It harmonizes Ying and Wei, allowing pathogens to exit via sweat, thereby stopping sweating naturally. (Wang Haogu asked: Someone asked whether Guizhi stops vexation and induces sweating. Zhang Zhongjing uses Guizhi Tang in many places for inducing sweating in cold damage treatment, yet also says "those without sweat must not use Guizhi"; those with excessive sweat use Guizhi Gancao Tang, which seems to close sweat pores. Are these two meanings compatible? Answer: Zhang Zhongjing said: In Taiyang disease, fever with sweating indicates weak Ying and strong Wei; Yin deficiency allows Yang to encroach, so Guizhi is used to induce sweating. This is to harmonize Ying Qi, after which Wei Qi becomes harmonious, wind pathogens have no place to reside, and thus resolution occurs through natural sweating. This is different from Mahuang, which opens the cou li to force out sweat. When sweat is excessive, Guizhi is used to harmonize Ying and Wei, so pathogens resolve with sweat and sweating stops naturally; this is not because Guizhi closes sweat pores. Therefore, it is suitable only for those with sweat. If there is no sweat in cold damage, the primary method should be inducing sweating, not merely harmonizing Ying and Wei. Hence, it is said that one must not take Guizhi if there is no sweat, nor Mahuang if there is sweat, because Guizhi Tang contains Shaoyao.) It also treats gouty pain in hands and feet and hypochondriac wind. (Gout differs by wind-phlegm, wind-dampness, damp-phlegm, blood stasis, Qi deficiency, and Blood deficiency; Guizhi serves as a guiding herb. Hypochondriac wind belongs to the Liver; Guizhi can calm the Liver. Li Dongyuan said: Guizhi travels horizontally in the arms because it consists of branches. He also said: Thin qi dissipates; Guizhi ascends to release the exterior; thick qi generates heat; Rougui descends to tonify the Kidney. Li Shicai said: Rougui is the thickest part near the root; Guixin is the next thickest part in the middle; Guizhi is the fine branch at the top. Rougui is lower, treating the Lower Jiao; Guixin is middle, treating the Middle Jiao; Guizhi is upper, treating the Upper Jiao. This follows the Way of Heaven.) Guizhi nature is biased toward Yang. For individuals with Yin deficiency, all blood disorders (which easily move blood) should not be mistakenly treated with it.

Muxihua (Osmanthus Flower): Acrid and warm. Made into paste cakes to be held in the mouth together with Baiyaojian and Haiercha. Generates fluids, dispels bad breath, resolves phlegm. Treats wind-worm toothache. Steamed with Sesame Oil. Moistens hair and serves as facial cream. Guiye (Cinnamon Leaf) crushed and soaked in water. Used for washing hair to remove dirt. Dispels wind.