卒死者，由三虚而遇贼风所为也。三虚，谓乘年之衰，一也；逢月之空，二也；失时之
和，三也。人有此三虚，而为贼风所伤，使阴气偏竭于内，阳气阻隔于外，二气壅闭，故暴
绝如死。若腑脏气未竭者，良久乃苏。
然亦有挟鬼神之气而卒死者，皆有顷邪退，乃活也。凡中恶及卒忤，卒然气绝，其后得
苏。若其邪气不尽者，停滞心腹，或心腹痛，或身体沉重，不能饮食，而成宿疹，皆变成注
。
卒忤者，亦名客忤，谓邪客之气，卒犯忤人精神也。此是鬼厉之毒瓦斯，中恶之类。人有
魂魄衰弱者，则为鬼气所犯忤，喜于道间门外得之。其状∶心腹绞痛胀满，气冲心胸，或即
闷绝，不复识人，肉色变异，腑脏虚竭者，不即治，乃至于死。然其毒瓦斯有轻重，轻者微治
而瘥，重者侵克腑脏，虽当时救疗，余气停滞，久后犹发，乃变成注。
犯卒忤，客邪鬼气卒急伤人，入于腑脏，使阴阳离绝，气血暴不通流，奄然厥绝如死状
也。良久，阴阳之气和，乃苏；若腑脏虚弱者，即死。亦有虽瘥而毒瓦斯不尽，时发，则心腹
刺痛，连滞变成注。
鬼击者，谓鬼厉之气击着于人也。得之无渐，卒着如人以刀矛刺状，胸胁腹内绞急切痛
，不可抑按，或吐血，或鼻中出血，或下血。
一名为鬼排，言鬼排触于人也。人有气血虚弱，精魂衰微，忽与鬼神遇相触突，致为其
所排击，轻者困而获免，重者多死。
猝死，是由于人体处于“三虚”状态时又遭受贼风侵袭所致。所谓“三虚”，是指：其一，遇到岁气衰弱的年份；其二，恰逢月亮亏空之时；其三，违背了四时气候的调和规律。人若具备这三种虚弱状态，再被贼风所伤，就会导致阴气在内偏枯衰竭，阳气在外阻隔不通，阴阳二气壅滞闭阻，因此突然断绝气息，状如死亡。如果脏腑之气尚未枯竭，经过较长时间后便能苏醒。
然而，也有夹杂鬼神邪气而猝死的，这类情况通常要等到邪气消退后才能存活。凡是中恶及卒忤（突然受到外界邪气冲撞），导致突然气绝，之后能够苏醒的。如果邪气没有完全清除，停滞在心腹部位，就会出现心腹痛、身体沉重、不能进食等症状，从而形成宿疾（久治不愈的慢性病），最终都演变为注病（具有传染性或迁延难愈的疾病）。
卒忤，又名客忤，是指外来的邪气突然侵犯并扰乱人的精神。这属于鬼厉之毒瓦斯，是中恶的一类。人若魂魄衰弱，就会被鬼气所侵犯冲撞，多发生在道路之间或门外。其症状表现为：心腹绞痛胀满，气逆冲撞心胸，或者立即闷绝，不认识人，面色改变。若脏腑虚竭而不立即治疗，甚至会致死。然而这种毒瓦斯的轻重不同，轻者轻微治疗即可痊愈，重者侵蚀克制脏腑，即使当时进行救治，残余邪气停滞，日后仍会发作，进而演变为注病。
犯卒忤时，客邪鬼气突然急迫地伤害人体，侵入脏腑，使阴阳离绝，气血突然不通畅流动，人忽然昏厥，状如死亡。经过较长时间，阴阳之气调和，才能苏醒；如果脏腑虚弱，就会死亡。也有虽然暂时痊愈但毒瓦斯未清，时而发作，出现心腹刺痛，连累迁延演变为注病。
鬼击，是指鬼厉之气击中人体。得病没有渐进过程，突然受击，感觉像被人用刀矛刺中一样，胸胁腹部内绞急切痛，不可按压，或者吐血，或者鼻出血，或者下血。
鬼击又名为鬼排，意思是鬼排触于人。人若气血虚弱，精魂衰微，忽然与鬼神相遇相触突，导致被其排挤打击，轻者困顿但能获免，重者大多死亡。
Sudden death is caused by encountering "thieving wind" (pathogenic wind) when the body is in a state of "three deficiencies." The "three deficiencies" refer to: first, encountering a year with declining annual qi; second, meeting the time of the waning moon; third, failing to harmonize with the seasonal climate. When a person possesses these three deficiencies and is injured by thieving wind, it causes yin qi to be excessively depleted internally and yang qi to be blocked externally. The two qi become congested and closed, leading to sudden cessation of breath, resembling death. If the qi of the zang-fu organs has not yet been exhausted, the patient may revive after a long period.
However, there are also cases of sudden death accompanied by the qi of ghosts and spirits, where survival depends on the pathogenic factors receding. In cases of Zhong'e (sudden attack by evil qi) and Zu Wu (sudden collision with external pathogenic factors), if qi suddenly ceases but the patient later revives, it indicates that the pathogenic qi was not completely eliminated. If the pathogenic qi remains stagnant in the heart and abdomen, it may cause heart and abdominal pain, heaviness of the body, and inability to eat, forming chronic conditions (Su Zhen). These all transform into Zhu disease (a type of infectious or lingering disease).
Zu Wu, also known as Ke Wu, refers to external pathogenic qi suddenly invading and disturbing the spirit. This belongs to the category of toxic vapors from ghosts and plagues, similar to Zhong'e. People with weak hun and po souls are prone to being invaded by ghostly qi, often occurring on roads or outside doors. The manifestations include: severe cramping pain and distension in the heart and abdomen, qi rushing upward to the chest and heart, or immediate suffocation and unconsciousness with loss of recognition, changes in skin color. If the zang-fu organs are deficient and exhaustion occurs without immediate treatment, death may result. However, the severity of this toxic vapor varies; mild cases may recover with slight treatment, while severe cases invade and overcome the zang-fu organs. Even if treated immediately, residual qi stagnates and may flare up later, transforming into Zhu disease.
When suffering from Zu Wu, the external pathogenic ghostly qi suddenly and urgently injures the body, entering the zang-fu organs, causing the separation and severance of yin and yang, and the sudden blockage of blood and qi flow. The patient suddenly faints, resembling death. After a long period, when yin and yang qi harmonize, the patient revives; if the zang-fu organs are weak, death ensues. Some patients may appear to recover, but if the toxic vapor is not fully cleared, it may flare up intermittently, causing stabbing pain in the heart and abdomen, leading to lingering complications and transforming into Zhu disease.
Gui Ji (Ghost Strike) refers to the qi of ghosts and plagues striking the human body. It occurs without gradual onset, presenting as a sudden impact, feeling as if pierced by a knife or spear. There is intense, cutting pain in the chest, hypochondrium, and abdomen that cannot be pressed, accompanied by hematemesis (vomiting blood), epistaxis (nosebleed), or lower gastrointestinal bleeding.
Gui Ji is also named Gui Pai (Ghost Push), meaning the ghost pushes against the person. Individuals with weak blood and qi, and diminished jing and hun, may suddenly encounter ghosts and spirits, leading to being pushed and struck by them. Mild cases result in distress but survival, while severe cases often lead to death.