諸經要集 20.26

20.26

又正法念經云。比丘修行者。如實見身。從頭至足循身觀察。彼以聞慧或以天眼。髑髏內自有蟲行。名曰腦行。遊行骨內生於腦中。或行或住。當食此腦。復有諸蟲住髑髏中。若行若食。還食髑髏。復有髮蟲。住於骨外食於髮根。以蟲瞋故令髮墮落。復有耳蟲。住在耳中食耳中肉。以蟲瞋故令人耳痛。或令耳聾。復有鼻蟲。住在鼻中食鼻中肉。以蟲瞋故。能令其人飲食不美。腦涎流下。以蟲食腦涎。是故令人飲食不美。復有脂蟲生在脂中。住於脂中常食人脂。以蟲瞋故令人頭痛。復有續蟲生於節間。有名身蟲住入人牙。以蟲瞋故令人脈痛。猶如針刺。復有諸蟲名曰食涎。住舌根中。以蟲瞋故令人口燥。復有諸蟲名曰牙根䖝。住於牙根。以蟲瞋故令人牙疼。復有諸蟲名歐吐蟲。以食違故多生歐吐。是名內修行者循身觀。是十種蟲住於頭中。或以聞慧。或以天眼。初觀咽喉有蟲名曰食涎。齟嚼食時。猶如歐吐。涎唾和雜。欲咽之時與腦涎合。喉中涎蟲共食此食。以自活命。若蟲增長令人嗽病。若多食膩。或多食垢。或食熏食。或食醋食。或食冷食。蟲則增長。令人咽喉生於病疾。

Furthermore, the Zhengfa nian jing says: "A bhikṣu practitioner sees the body as it truly is, observing the body sequentially from head to foot. Through wisdom gained from hearing or through the divine eye, [he sees that] within the skull there are worms crawling, called 'brain-crawlers'. Moving within the bone, they are born inside the brain; moving or staying, they consume this brain. Furthermore, there are worms residing in the skull: moving or feeding, they in turn eat the skull. Furthermore, there are hair-worms, residing outside the bone, eating the roots of the hair; when the worms become enraged, they cause the hair to fall out. Furthermore, there are ear-worms, residing in the ear, eating the flesh within the ear; when the worms become enraged, they cause ear pain or deafness in the person. Furthermore, there are nose-worms, residing in the nose, eating the flesh within the nose; when the worms become enraged, they cause food and drink to be unpalatable to the person, and brain-mucus flows down; because the worms eat the brain-mucus, this causes food and drink to be unpalatable to the person. Furthermore, there are fat-worms, born in the fat, residing in the fat and constantly eating human fat; when the worms become enraged, they cause headaches in the person. Furthermore, there are connecting-worms, born between the joints; there are also body-worms, residing and entering into human teeth; when the worms become enraged, they cause pain in the vessels like the piercing of needles. Furthermore, there are worms called 'saliva-eaters', residing in the root of the tongue; when the worms become enraged, they cause the mouth to become dry. Furthermore, there are worms called 'tooth-root worms', residing at the roots of the teeth; when the worms become enraged, they cause toothaches in the person. Furthermore, there are worms called 'vomiting worms'; when food disagrees [with them], they frequently cause vomiting. This is called the internal practitioner's sequential contemplation of the body: these ten kinds of worms reside within the head. Either through wisdom gained from hearing or through the divine eye, one first contemplates the throat, where there is a worm called 'saliva-eater'. When chewing food, it is like vomiting, mixed with saliva; when about to swallow, it combines with the brain-mucus, and the saliva-worms in the throat share and eat this food to maintain their lives. If the worms multiply, they cause coughs in the person. If one eats much grease, or eats much filth, or eats smoked food, or eats sour food, or eats cold food, the worms multiply, causing diseases to arise in the throat."