黄帝坐明堂，召雷公而问之曰∶子知医之道乎？雷公对曰∶诵而未能解，解而未能别，别而未能明，明
而未能彰，足以治群僚，不足治侯王。愿得受树天之度，四时阴阳合之，别星辰与日月光，以彰经术，后
世益明，上通神农，着至教疑于二皇。帝曰∶善。无失之，此皆阴阳表里上下雌雄相输应也，而道上知天文，
下知地理，中知人事，可以长久，以教众庶，亦不疑殆，医道论篇，可传后世，可以为宝。雷公曰∶请受道，
讽诵用解。帝曰∶子不闻《阴阳
传》乎？曰∶不知。曰∶夫三阳天为业，上下无常，合而病至，偏害阴阳。雷公曰∶三阳莫当，请闻其
解。帝曰∶三阳独至者，是三阳并至，并至如风雨，上为巅疾，下为漏病。外无期，内无正，不中经纪，诊无
上下，以书别。雷公曰∶臣治疏愈，说意而已。帝曰∶三阳者，至阳也，积并则为惊，病起疾风，至如霹雳，
九窍皆塞，阳气滂溢，干嗌喉塞。并于阴，则上下无常，薄为肠 。此谓三阳直心，坐不
得起，卧者便身全，三阳之病。且以知天下，何以别阴阳，应四时，合之五行。雷公曰∶阳言不别，阴
言不理，请起受解，以为至道。帝曰∶子若受传，不知合至道以惑师教，语子至道之要。病伤五脏，筋骨以消，
子言不明不别，是世主学尽矣。肾且绝，惋惋日暮，从容不出，人事不殷。
黄帝坐在明堂，召见雷公并问他道：“你懂得医学的道理吗？”雷公回答说：“我只是背诵经文而不能理解其义，理解了而不能辨别其异，辨别了而不能阐明其理，阐明了而不能彰显其用。这些知识足以治疗一般官员的疾病，却不足以治疗诸侯王侯的重病。我希望能够学习确立天道的法度，将四时阴阳的变化与之相合，分辨星辰与日月之光，以此来彰显医经的学术，使后世更加明白，上通神农氏的道统，成就至高的教诲，媲美二皇（伏羲、神农）。”
黄帝说：“好。不要忽视这些道理，这些都是阴阳、表里、上下、雌雄相互对应关联的规律。掌握了它，向上可以通晓天文，向下可以了解地理，中间可以洞察人事，这样可以长久地运用，用来教导大众，也不会产生疑惑和危险。《医道论篇》的内容，可以流传给后世，可以作为珍宝。”
雷公说：“请让我接受这个道统，通过讽诵来理解运用。”
黄帝说：“你没有听说过《阴阳传》吗？”雷公说：“不知道。”黄帝说：“三阳之气以天为事业，运行上下没有固定常态，如果合并起来导致疾病发生，就会偏害阴阳平衡。雷公说：‘三阳之气势不可挡，请听您解释。’黄帝说：‘所谓三阳独至，是指三阳之气并至，并至的气势如同风雨一样猛烈，向上会导致头部疾病（巅疾），向下会导致漏泄类病症（如二便失禁等）。这种病在外没有固定的征期，在内没有正常的脉象，不符合常规的经络规律，诊断时无法区分上下，只能通过书籍文献来辨别。’”
雷公说：“臣下治疗疏远的人效果较好，对于您的学说只是领会大意罢了。”
黄帝说：“三阳之气，是至极之阳，积聚合并就会导致惊骇。发病像疾风一样突然，到来如霹雳般迅猛，九窍全部闭塞，阳气滂沱四溢，侵犯咽喉导致喉部阻塞。如果三阳之气并入阴分，则上下无常，迫及肠道导致肠鸣泄泻。这叫做三阳之气直中心脏，患者坐立不安，躺下时身体才能感到舒适，这是三阳病的特征。并且要以此推知天下之事，如何辨别阴阳，顺应四时，并与五行相合。”
雷公说：“对于阳气的论述不能辨别，对于阴气的论述不能理清，请您起身为我讲解，将其作为至高无上的道。”
黄帝说：“如果你接受了这部传记，却不知道结合至高之道去理解，从而被老师的教法所迷惑，我就告诉你至高之道的要点。如果疾病损伤了五脏，导致筋骨消瘦，而你所说的不明不辨，这说明世间的学者已经学尽了（指浅薄之学）。肾气将要断绝时，病人心中悔恨忧愁，在傍晚时分，神情从容迟钝，不愿外出，人世间的事务也不繁忙（指病情危重，无暇他顾或生命垂危之象）。”
Huangdi sat in the Mingtang (Bright Hall) and summoned Leigong, asking him, "Do you understand the principles of medicine?" Leigong replied, "I can recite the texts but cannot comprehend them; I can comprehend them but cannot distinguish their differences; I can distinguish their differences but cannot clarify their meanings; I can clarify their meanings but cannot manifest their applications. This knowledge is sufficient to treat officials but insufficient to treat feudal lords. I wish to learn the measures of Heaven, harmonize them with the Yin and Yang of the four seasons, differentiate the stars from the light of the sun and moon, thereby elucidating the classics so that future generations may understand them better. In this way, one can connect with Shennong (Divine Farmer) and establish supreme teachings comparable to the Two Emperors."
Huangdi said, "Good. Do not neglect these principles. These are all about the mutual correspondence and interaction of Yin and Yang, interior and exterior, upper and lower, and male and female. By mastering them, one can know astronomy above, geography below, and human affairs in between, allowing for long-term practice. One can teach the masses without doubt or danger. The *Lun Yi Dao Pian* (Treatise on the Way of Medicine) can be transmitted to posterity and kept as a treasure."
Leigong said, "Please let me receive this Way and use recitation to understand it."
Huangdi said, "Have you not heard of the *Yin Yang Zhuan* (Transmission of Yin and Yang)?" Leigong said, "No." Huangdi said, "The Three Yang (Taiyang, Yangming, Shaoyang) take Heaven as their domain. Their movement up and down has no fixed pattern. If they combine to cause disease, they will disrupt the balance of Yin and Yang. Leigong said, 'The Three Yang are unstoppable; please explain.' Huangdi said, 'When the Three Yang arrive alone, it means the Three Yang energies converge. This convergence is like wind and rain. Upward, it causes diseases of the head (Dian Ji); downward, it causes leakage disorders. Externally, there is no predictable cycle; internally, there is no normal pulse pattern. It does not follow the regular meridians. Diagnosis cannot distinguish upper from lower; differentiation must rely on textual records.'"
Leigong said, "My treatment of distant patients yields better results; I only grasp the general idea of your theory."
Huangdi said, "The Three Yang represent Extreme Yang. When accumulated and combined, they cause fright. The onset is as sudden as a gale, arriving like thunder. All nine orifices become blocked, Yang Qi overflows excessively, invading the throat and causing obstruction. If the Three Yang merge into the Yin, their movement becomes erratic, pressing upon the intestines and causing diarrhea. This is called the 'Three Yang striking the heart directly,' where the patient cannot sit or lie comfortably; lying flat provides relief. This characterizes the disease of the Three Yang. Furthermore, using this to understand the world, one must differentiate Yin and Yang, respond to the four seasons, and harmonize with the Five Elements."
Leigong said, "I cannot distinguish the discussion of Yang, nor can I reason through the discussion of Yin. Please rise and explain it to me, so I may regard it as the Supreme Way."
Huangdi said, "If you accept the transmission but do not integrate it with the Supreme Way, you will be confused by my teaching. Let me tell you the essence of the Supreme Way. If disease damages the Zang Organs, leading to the wasting of sinews and bones, and your understanding remains unclear and undistinguished, it shows that worldly scholars have exhausted their learning. When Kidney Qi is near exhaustion, the patient feels remorseful and anxious at dusk, remains lethargic and unwilling to go out, and shows no interest in worldly affairs."