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It is also known as the Magnolia Flower (Mubihua).
Acrid and warm, non-toxic. Remove the hairy petals and use only the core; avoid roasting with fire.
The *Shennong Bencao Jing* (Divine Farmer's Materia Medica) states it treats cold and heat sensations in the five viscera and body, head wind and brain pain, and facial [symptoms].

Innovation: Nasal qi connects to Heaven, and the Lung opens into the nose. The acrid and warm nature of Xin Yi (Magnolia Flower) moves Qi, enters the Lung, and benefits the orifices. Its texture is light and floating, capable of opening the clear Yang in the stomach and ascending to connect with Heaven. Therefore, the *Bencao Jing* uses it to treat stagnant Yang Qi, cold and heat sensations in the body, head wind and brain pain, and facial [symptoms]. Its acrid and warm nature can release the muscle layer; its aromatic quality ascends to the head and eyes to expel Wind-Evil from the Yang divisions, thus curing various symptoms. Among those after Xuanqi (Yellow Emperor and Qibo), only Dongyuan (Li Dongyuan) could fully grasp this principle. For rhinorrhea (Biqiu), sinusitis (Bi Yuan), nasal congestion, and nasal sores after smallpox, grind into powder, add a small amount of Moschus (Shexiang), dip scallion white into it, and insert into the nose; this is very effective for cases where dampness in the brain and nose has been obstructed for a long time. However, due to its pungent and aromatic penetrating nature, it is contraindicated for deficient individuals with blood deficiency and blazing fire causing nasal congestion, as well as for those who have accidentally caught Wind-Cold and suffer from nasal congestion without smell.

Acrid, sweet, bitter, slightly warm, non-toxic. Those that taste sweet when chewed are neutral in nature; those that taste spicy are hot in nature. Processing forbids fire. This applies to all aromatic herbs, not just Chenxiang (Agarwood). Those produced in Hainan are yellow in color with black cut surfaces; those commonly referred to as "copper tendons and iron bones" are considered superior. Those from Dayi with white palm-like patterns are of secondary quality. Recently, Agarwood from Xinshan is black and hard, with a dense texture and lacking sweet-bitter taste, making it ineffective for medicinal use. Imported by foreign ships, if the odor carries an acidic note, it is considered inferior grade. Those that float on water are called Suxiang (Fast Fragrance) and are not used medicinally.

Innovation: Shenshui Xiang (Sunken Agarwood) is warm in nature, inheriting the pure Yang nature of the South, specializing in transforming Qi, and is suitable for cases of stagnant and unexpressed Qi. It is warm but not drying, moving but not draining, supports the Spleen, reaches the Kidney, and guides Fire back to its source. It is a key herb for treating deficiency-type constipation of the Large Intestine, Qi-type stranguria, phlegm-saliva, and bleeding originating from the Spleen. It is suitable for sudden heart and abdominal pain, cholera, evil invasion, rebellious Qi, wheezing, and urgency. Grind with wine and take orally; it supplements the Mingmen (Gate of Life) and Sanjiao (Triple Burner); for men with cold semen, it is suitable for inclusion in pill formulations. Combined with Guang Huoxiang (Patchouli Herb) and Xiangfu (Cyperus Rhizome), it treats various deficiency-cold and deficiency-heat conditions. Combined with Dingxiang (Clove) and Rougui (Cinnamon Bark), it treats Stomach deficiency and hiccups. Combined with Zisu (Perilla Leaf) and Ba Doukou (Black Cardamom), it treats Cold-Stomach vomiting. Combined with Fuling (Poria) and Renshen (Ginseng Root), it treats insufficiency of Heart-Mind. Combined with Chuanjiao (Sichuan Pepper) and Rougui (Cinnamon Bark), it treats decline of Mingming Fire. Combined with Guang Muxiang (Aucklandia Root) and Xiangfu (Cyperus Rhizome), it treats women who forcibly restrain sexual intercourse or hold urine too long, leading to retention of urine (Zhuanbao). Combined with Roushouyu (Cistanche) and Mahuangren (Hemp Seed), it treats deficiency-type constipation of the Large Intestine. In ancient formulas such as Simo Yin (Four-Grip Decoction), Chenxiang Huaqi Wan (Agarwood Qi-Transforming Pill), and Guntan Wan (Rolling Phlegm Pill), it is used for its descending and purgative properties. In Chenxiang Jiangqi San (Agarwood Qi-Descending Powder), it is used for its ability to dissipate nodules and guide Qi. In Heixi Dan (Black Tin Pill), it is used for its ability to gather Qi and return it to the origin. However, it descends more than it ascends; individuals with Qi deficiency and sinking should not take it in large amounts. Long-term use often leads to excessive passage of gas, sallow complexion, poor appetite, and various deficiency syndromes. One type is called Mixiang (Honey Fragrance), which is largely similar to Chenxiang. Therefore, the *Bencao Gangmu* explains both Shenshui Xiang and Mixiang together. Generally, straight pieces, regardless of size, sink in water. If shaped like wood ear fungus, commonly known as General's Hat, it is Mixiang; its efficacy is slightly inferior, capable only of dispelling evil, removing pathogenic factors, and warding off all abnormal Qi such as corpse transmission, but its power to warm the Spleen, warm the Stomach, and gather Qi to return to the origin is less than that of Chenxiang.