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Scattered; those that travel subsequently ascend along the interior of the back, serving as the Sea of the Collaterals (Jingluo). The portion ascending emerges from the Hongsang (upper pharynx), while the portion descending emerges at the feet. Therefore, its Shu points are located superiorly at Dazhu (BL11) of the Foot-Taiyang Bladder Channel, and inferiorly at Shangjuxu (ST37) and Xiajuxu (ST39) of the Foot-Yangming Stomach Channel. The Chong Mai (Penetrating Vessel) originates in the Baozhong (uterus or essence chamber) and converges with the Yangming channels at the anterior yin. Thus, the essence and blood of both men and women descend via the anterior yin because the blood and qi of these two vessels gather here in abundance. Consequently, they are both referred to as the Sea of the Zang-Fu Organs and the Twelve Channels, truly incomparable to other channels.) The Danzhong (Chest Center) is the Sea of Qi. Its Shu points are located superiorly at the upper and lower aspects of the Zhugu (cervical vertebrae) and anteriorly at the Yingling (Renying, ST9) point. (Danzhong refers to the chest center, the residence of the Lung. All Qi belongs to the Lung; this is True Qi, also known as Zong Qi (Gathering Qi). Zong Qi accumulates in the chest, emerges from the throat, penetrates the Heart vessels, and governs respiration; thus, Danzhong is called the Sea of Qi. Zhugu refers to the Tianzhu bone at the back of the neck. Hongsang is the site where Qi disperses. Therefore, the Shu points for the circulation of Qi in the Sea of Qi are: one posterior to Hongsang, at the upper and lower aspects of Zhugu, referring to the Yimen (DU18) and Dazhui (DU14) points of the Du Mai (Governor Vessel); the other anterior to Hongsang, referring to the Yingling (ST9) point of the Foot-Yangming Stomach Channel.) The Brain is the Sea of Marrow. Its Shu points are located superiorly at the brain cover (Xinhui, DU22 area) and inferiorly at the Fengfu (DU16) point. (Among all bones containing marrow, the brain is the largest; thus, all marrow belongs to the brain, making it the Sea of Marrow. 'Cover' refers to the cranial vault bone, corresponding to Xinhui (DU22) of the Du Mai. Fengfu (DU16) is also a point on the Du Mai. These are the superior, inferior, anterior, and posterior Shu points of the Sea of Marrow.) If the Sea of Qi has Excess, there will be Qi fullness, chest oppression with panting, and a red face. If the Sea of Qi has Deficiency, there will be shortness of breath and inability to speak. (Qi excess indicates Pathogenic Qi excess; Qi deficiency indicates Healthy Qi deficiency. The following follows this pattern. The Sea of Qi is in the chest and belongs to Yang. Thus, when Qi is excessive, there is chest oppression, panting, facial heat, and redness, with voice emanating from Qi; when Qi is deficient, speech is weak and timid, unable to produce sound. If speech is faint and only uttered once after a whole day, this is Devastation of Qi. , pronounced 'mu' originally, also 'man'.) If the Sea of Blood has Excess, one constantly feels their body is large, feeling stifled and unaware of the illness. If the Sea of Blood has Deficiency, one constantly feels their body is small, feeling narrow and unaware of the illness. (The form is filled by Blood; thus, Blood excess makes one feel the body is large. 'Fu' refers to stagnation, a heavy and sluggish sensation. Blood deficiency makes one feel the body is small. 'Xia' refers to narrowness, a sparse and unexpanded sensation. These are all diseases caused by disharmony of the Sea of Blood. Diseases in the Blood manifest slowly and subtly, hence the confusion regarding the illness. 'Fu', pronounced 'fu'.) If the Sea of Water and Grain has Excess, there will be abdominal fullness. If the Sea of Water and Grain has Deficiency, there will be hunger but an inability to accept food. (Excess means water and grain stagnate in the middle, causing abdominal distension. Deficiency means Spleen deficiency fails to transform and Stomach deficiency fails to receive, so although hungry, one cannot eat grains.) If the Sea of Marrow has Excess, one will feel light, vigorous, and strong, exceeding normal limits. If the Sea of Marrow has Deficiency, there will be dizziness, tinnitus, soreness of the shins, vertigo, blindness, lassitude, and a desire to lie down. (Marrow sea sufficiency is Excess; thus, the body is light and vigorous, convenient and strong, naturally surpassing others without disease. If deficient, superiorly it manifests as dizziness because the brain is empty and rotation seems spinning; as tinnitus because marrow deficiency leads to essence decline, and Yin deficiency causes tinnitus; as shin soreness because marrow emptiness leads to weakness; as vertigo with sudden loss of consciousness; as blindness; and as lassitude with a desire to lie down. All occur because marrow belongs to Essence; when Essence declines, Qi departs, and these symptoms appear.) Carefully observe these Shu points and regulate their Excess and Deficiency. Do not commit harm. Those who follow the proper order will recover; those who oppose it will fail. (Carefully observing Shu points means examining these Shu points. Do not commit harm: do not reinforce Excess, do not deplete Deficiency. Recovery follows compliance; failure follows opposition. Beware! Both heavenly timing and human affairs require caution and must not be neglected.)