黄帝问于岐伯曰。余尝上于清冷之台。中阶而顾。匍匐而前。则惑。余私异之。窃内怪之。独暝独视。安心定气。
久而不解。独博独眩。（博义难通当是转之讹也）被发长跪。俯而视之。后久之不已也。卒然自上。何气使然。岐伯对曰。
五脏六腑之精气。皆上注于目。而为之精。精之窠为眼。骨之精为瞳子。筋之精为黑眼。血之精为络。其窠气之精为白
眼。肌肉之精为约束裹撷。筋骨血气之精。而与脉并为系。上属于脑后。出于项中。故邪中于项。因逢其身之虚。其入
深则随眼系。以入于脑。入于脑则脑转。脑转则引目系急。目系急则目眩以转矣。邪中其精。其精不相比也。则精散。
精散则视歧。视歧见两物。目者。五脏六腑之精也。营卫魂魄之所常营也。神气之所生也。故神劳则魂魄散。志意乱。
是故瞳子黑眼法于阴。白眼赤脉法于阳也。故阴阳合传而精明也。目者。心之使也。心者。神之舍也。故神精乱而不转。
卒然见非常处。精神魂魄散不相得。故曰惑也。黄帝曰。余疑其然。余每之东苑。未曾不惑。去之则复。余唯独为东苑
劳神乎。何其异也。岐伯曰。不然也。心有所喜。神有所恶。卒然相感则精气乱。视误故惑神移乃复。是故间者为迷。
甚者为惑。黄帝曰。人之善忘者。何气使然。岐伯曰。上气不足。下气有余。肠胃实而心肺虚。虚则营卫留于下。久之
不以时上。故善忘也。黄帝曰。人之善饥而不嗜食者。何气使然。岐伯曰。精气并于脾。热气留于胃。胃热则消谷。谷
消故善饥。胃气逆上。则胃脘寒。（寒似当作实）故不嗜食也。黄帝曰。病而不得卧者。何气使然。岐伯曰。卫气不得入
于阴。常留于阳。留于阳则阳气满。阳气满。则阳跷盛。不得入于阴。则阴气虚。故目不瞑矣。黄帝曰。病而目不得视
者。何气使然。岐伯曰。卫气留于阴。不得行于阳。留于阴则阴气盛。阴气盛。则阴跷满。不得入于阳。则阳气虚。故
目闭也。黄帝曰。人之多卧者。何气使然。岐伯曰。此人肠胃大。而皮肤湿。而分肉不解焉。肠胃大则卫气留久。皮肤
湿则分肉不解其行迟。夫卫气者。昼日常行于阳。夜常行于阴。故阳气尽则卧。阴气尽则寤。故肠胃大。则卫气留久。
皮肤湿。分肉不解。则行迟。留于阴也。久其气不清则欲瞑。故多卧矣。其肠胃小。皮肤滑以缓。分肉解利。卫气之留
于阳也久。故少瞑焉。黄帝曰。其非常经也。卒然多卧者。何气使然。岐伯曰。邪气留于上焦。上焦闭而不通已。食若
饮汤。卫气留久于阴而不行。故卒然多卧焉。黄帝曰。善治此诸邪奈何。岐伯曰。先其脏腑。诛其小过。后调其气。盛
者泻之。虚者补之。必先明知其形志之苦乐。定乃取之。
重论眩惑附论诸邪。而以治法结之。篇法数见不鲜矣。运笔自夭矫可喜。
Huangdi asked Qibo: I once ascended the Qingleng Terrace. Looking back while halfway up the stairs, and crawling forward on hands and knees, I felt dizzy. I privately found this strange and secretly wondered about it internally. Whether closing my eyes or opening them, I calmed my mind and regulated my breath, yet for a long time the dizziness did not resolve. When turning my head alone or feeling dizzy, with hair loose, kneeling upright, and looking down after a long time, the condition persisted. This dizziness suddenly came from above. What qi causes this?
Qibo replied: The essence of the five zang organs and six fu organs all ascend to the eyes, forming the essence of the eye. The gathering place of essence is the eye socket. The essence of bone manifests as the pupil (Tongzi). The essence of sinew manifests as the black eye (iris). The essence of blood manifests as the collaterals. The essence of qi gathering in the sockets manifests as the white eye (sclera). The essence of muscle manifests as the eyelids (Yueshu Guoxie). The essence of sinew, bone, blood, and qi, together with the vessels, form the optic nerve system (Muxi), which ascends to connect behind the brain and emerges from the neck. Therefore, if pathogenic factors strike the neck, coinciding with deficiency in the body, and enter deeply, they follow the optic nerve system into the brain. Entering the brain causes rotation of the brain; rotation of the brain pulls the optic nerve system taut; tautness of the optic nerve system causes vertigo and spinning vision. If pathogenic factors strike the essence of the eye, causing the essences to be uncoordinated, the essence scatters. Scattering of essence leads to diplopia (Shi Qi), seeing double objects. The eyes are the repository of the essence of the five zang organs and six fu organs, the place where Ying-Wei, Hun, and Po frequently circulate, and the source of Shen Qi. Therefore, mental fatigue causes Hun and Po to scatter and Zhiyi to become chaotic. Thus, the pupils and black eyes correspond to Yin, while the white eyes and red vessels correspond to Yang. When Yin and Yang harmoniously transmit, clarity of vision is achieved. The eyes are the envoys of the Heart; the Heart is the residence of Shen. Therefore, if Shen Jing becomes chaotic and fails to rotate properly, and one suddenly sees unusual sights, the Spirit, Essence, Hun, and Po scatter and fail to coordinate, which is called "Huo" (Confusion/Dizziness).
Huangdi said: I suspect this is true. Yet every time I go to Dongyuan, I invariably experience dizziness, which resolves when I leave. Am I the only one whose Shen is fatigued by Dongyuan? Why is it so different?
Qibo said: Not so. If the Heart has preferences and Shen has aversions, sudden mutual stimulation causes chaos in Jing-Qi, leading to visual errors and thus confusion. Only when Shen shifts does recovery occur. Therefore, mild cases are called "Mi" (Bewilderment), and severe cases are called "Huo" (Confusion).
Huangdi asked: What qi causes people to be prone to forgetfulness?
Qibo said: Upper Qi is insufficient, Lower Qi is excessive. The intestines and stomach are full, while the Heart and Lungs are deficient. Deficiency causes Ying-Wei to remain in the lower part, failing to ascend in time over a long period, hence forgetfulness occurs.
Huangdi asked: What qi causes people to feel hungry easily but lack appetite?
Qibo said: Jing-Essence merges with the Spleen, and hot qi lingers in the Stomach. Stomach heat digests food quickly; because food is digested quickly, hunger arises easily. However, if Stomach Qi rebels upward, the epigastrium becomes cold (the character 'cold' here likely should be 'excess'). Hence, there is no desire to eat.
Huangdi asked: What qi causes inability to lie down and sleep due to illness?
Qibo said: Wei-Qi cannot enter Yin and remains in Yang. Remaining in Yang makes Yang Qi abundant; abundant Yang Qi makes the Yang Qiao vessel vigorous. Inability to enter Yin makes Yin Qi deficient. Thus, the eyes cannot close for sleep.
Huangdi asked: What qi causes inability to open the eyes and see due to illness?
Qibo said: Wei-Qi remains in Yin and cannot move in Yang. Remaining in Yin makes Yin Qi abundant; abundant Yin Qi fills the Yin Qiao vessel. Inability to enter Yang makes Yang Qi deficient. Thus, the eyes remain closed.
Huangdi asked: What qi causes people to sleep excessively?
Qibo said: Such individuals have large intestines and stomachs, moist skin, and tight intermuscular spaces. Large intestines and stomachs cause Wei-Qi to stay longer; moist skin and tight intermuscular spaces slow its movement. Wei-Qi usually travels in Yang during the day and in Yin at night. Thus, when Yang Qi ends, one sleeps; when Yin Qi ends, one wakes. Because the intestines and stomach are large, Wei-Qi stays longer; because the skin is moist and intermuscular spaces are tight, movement is slow, keeping it in Yin for a long time. Long retention in Yin causes cloudiness, leading to a desire to close the eyes, hence excessive sleep. Conversely, small intestines and stomachs, smooth and relaxed skin, and loose intermuscular spaces allow Wei-Qi to stay longer in Yang, resulting in less sleep.
Huangdi asked: What qi causes sudden excessive sleep outside of normal meridian patterns?
Qibo said: Pathogenic factors linger in the Upper Jiao, causing blockage and obstruction. If food or soup is consumed, Wei-Qi stays long in Yin and cannot exit, causing sudden excessive sleep.
Huangdi asked: How should these various pathogenic conditions be treated?
Qibo said: First identify the affected Zang-Fu organs, correct minor deviations, then regulate their Qi. Excess conditions are drained; deficiency conditions are tonified. One must first clearly understand the physical and psychological state of pleasure or distress of the patient before determining the treatment method.
The chapter re-discusses vertigo and confusion, appending discussions on various pathogens, and concludes with treatment methods. The structural pattern appears frequently and is not novel. However, the writing style is naturally vigorous and pleasing.