先叩齿当门小鸣，后叩大牙大鸣。《真诰》云∶叩齿所以警身中诸神，神不得散，则鬼气不得侵。
《太上三关经》∶常欲以手按目，近鼻之两 。闭气为之，气通即止，终而复始。常行之，眼
能洞见。又云∶导引毕，以手按目四 三九过，令见光明，是捡眼神之道。久为之，得见灵也。
《内经》云∶常以手按眉后小穴中二九，一年可夜书。亦可于人中密行之，勿语其状。
眉后小穴为上元六合之府，主化眼生晕、和营精光、长珠彻瞳。保炼目瞳，是真人坐起之
道，一名真人常居。真谚云∶子欲夜书，当修常居。真人所以能旁观四达、八遐照烛者，实常居之
数明也。《紫微夫人诰》∶仰和天真，俯按山源。天真是两眉之角，山源是鼻下人中也。两眉之角是
彻视之津梁，天真是引灵之上房。
《消魔经》∶鼻欲得按其左右，唯令无数，令人气平。所谓灌溉中岳，名书帝 。
紫微夫人云∶俯按山源，是鼻下人中之本，侧在鼻下小谷中也。楚庄公时，市长宋来子常洒
扫一市，常歌曰∶天庭发双华，山源障阴邪，清晨按天马，来诣太清家。真人无那隐，又以灭百邪。
常歌此，乞食一市，无人解其歌者。乞食公西岳真人冯延寿也，周宣王时史官也。手为天马，鼻
为山源。每经危险之路，庙貌之间，心中有疑忌之意者，乃先反舌内向，咽津一二过。毕，以左手
第二节三指摄两鼻孔下人中之本、鼻中隔孔之内际。鼻中隔之际曰山源，一名鬼井、一名神池、
一名魂台。手按山源，则鬼井闭门；手薄神池，则邪根散分；手临魂台，则玉真守关。于是感激
灵根，天兽来卫，千精震伏，莫干我气，此自然之理使然也。鼻下山源，是一身之武津，真邪之
通府。守真者所以遏万邪，在我运摄之耳。
首先叩击门牙发出轻微声响，随后叩击大牙发出响亮声响。《真诰》说：叩齿是为了警示身体内的诸神，神灵不散失，鬼气就无法侵入。
《太上三关经》记载：经常想要用手按压眼睛，靠近鼻翼两侧的穴位。闭气进行练习，气息通畅后即停止，循环往复。长期坚持，眼睛能看清细微之物。又说：导引结束后，用手按压眼周穴位三十六次，使眼前出现光明，这是收敛眼神的方法。长久坚持，能见到神灵。
用两手掌侧立，摩擦手掌直到发热如火，有硫磺气味时停止，睁眼多次熨烫眼部。
《内经》说：经常用手按压眉后的小穴位三十六次，一年后可在夜间书写。也可以在人中穴秘密练习，不要告诉别人这种方法。眉后小穴位是上元六合的府库，主要作用是化解眼生晕眩、调和营血精气、增长瞳孔光泽。保养锻炼目瞳，是真人在坐卧起身时的方法，又名真人常居法。真谚说：你想在夜间书写，应当修习常居法。真人之所以能旁视四方通达、照亮八方远处，实在是因为常居法的功效显著。《紫微夫人诰》说：仰头顺应天真之气，俯身按压山源之地。天真是指两眉内侧的角部，山源是指鼻下的人中穴。两眉内侧的角部是彻视的津梁，天真是引导灵气的上房。
《消魔经》说：鼻子需要经常按压其左右两侧，次数不限，使人气息平和。这叫做灌溉中岳，名为帝书。
紫微夫人说：俯身按压山源，是指鼻下人中穴的根本，位于鼻下的小山谷中。楚庄公时期，市场管理者宋来子经常打扫整个市场，经常歌唱道：“天庭散发双华，山源阻挡阴邪，清晨按压天马，来到太清之家。真人没有隐藏的隐忧，又能消灭百种邪气。”经常唱这首歌，在市场乞讨食物，没有人理解他的歌谣。这位乞食的公西岳真人是冯延寿，他是周宣王时期的史官。手被称为天马，鼻子被称为山源。每当经过危险的道路或庙宇之间，心中产生疑虑忌讳之意时，就先反舌向内，吞咽津液一两次。完成后，用左手第二节的三个手指捏住两鼻孔下方人中的根本、鼻中隔孔的内侧边缘。鼻中隔的边缘称为山源，又名鬼井、神池、魂台。手按山源，则鬼井关门；手轻触神池，则邪根分散；手临魂台，则玉真守关。于是感激灵根，天兽来护卫，千种精怪震慑屈服，不能干扰我的气，这是自然之理使然。鼻下的山源，是一身的武津，真邪交通的府库。坚守真气的人所以能遏制万种邪气，在于我自身的运化摄持罢了。
First, tap the incisors to produce a slight sound, then tap the molars to produce a loud sound. The *Zhen Gao* (True Revelations) states: Tapping teeth serves to alert the various deities within the body; if the deities do not scatter, ghostly qi cannot invade.
The *Taishang Sanguan Jing* (Scripture of the Supreme Three Passes) records: One should frequently use hands to press the eyes, near the two acupoints adjacent to the nose. Practice while holding the breath, and stop when the qi flows smoothly, repeating this cycle. Consistent practice allows the eyes to see clearly with great detail. It also states: After completing daoyin exercises, press the four corners around the eyes thirty-six times to bring forth light in vision; this is the method of gathering and focusing the spirit of the eyes. Long-term practice enables one to perceive spiritual entities.
Stand the palms of both hands vertically and rub them until they become hot like fire, stopping when a scent resembling sulfur appears. Open the eyes and steam/warm the eyeballs several times.
The *Neijing* (Inner Canon) states: Frequently press the small acupoint behind the eyebrows thirty-six times; after one year, one can write at night. This can also be practiced secretly at the Renzhong point (GV26), without revealing the method to others. The small acupoint behind the eyebrow is the mansion of the Upper Yuan Liuhe, primarily responsible for resolving dizziness in the eyes, harmonizing Ying (nutritive) essence and light, and enhancing the clarity of the pupil. Preserving and refining the pupils is the method used by True Persons during sitting and rising, also known as the "Changju" (Constant Dwelling) method. The True Proverb says: If you wish to write at night, you must cultivate Changju. The reason True Persons can see sideways and reach everywhere, illuminating the eight distant directions, is truly due to the brilliance of the Changju method. The *Ziwei Furen Gao* (Admonition of Lady Ziwei) states: Look up to harmonize with Tianzhen (Heavenly Truth), and bow down to press Shanyuan (Mountain Source). Tianzhen refers to the inner corners of the two eyebrows, and Shanyuan refers to the Renzhong point (GV26) below the nose. The inner corners of the eyebrows are the bridges for clear vision, and Tianzhen is the upper chamber for guiding spiritual energy.
The *Xiaomo Jing* (Scripture of Eliminating Demons) states: The nose should be pressed on its left and right sides frequently, with no limit on the number of times, to calm the person's qi. This is called irrigating the Central Peak (Zhongyue), named in the Imperial Scripture.
Lady Ziwei said: Bowing down to press Shanyuan refers to the root of the Renzhong point below the nose, located in the small valley beneath the nose. During the time of Duke Zhuang of Chu, Song Laizi, the market administrator, often swept the entire market and sang frequently: "The Heavenly Court emits dual splendor, Shanyuan blocks yin evils; pressing Tianma in the early morning, arriving at the home of Taiqing. The True Person has no hidden worries, and thus extinguishes a hundred evils." Singing this song constantly, he begged for food in the market, but no one understood his song. This beggar was Gongxi Yue Zhenren Feng Yanshou, a historian during the reign of King Xuan of Zhou. Hands are called Tianma (Heavenly Horse), and the nose is called Shanyuan (Mountain Source). Whenever passing dangerous roads or between temples, if one harbors doubts or taboos in the heart, first reverse the tongue inward and swallow saliva once or twice. Upon completion, use three fingers of the second joint of the left hand to pinch the root of Renzhong below the two nostrils and the inner edge of the septum hole. The edge of the nasal septum is called Shanyuan, also known as Guijing (Ghost Well), Shenchi (Spirit Pool), and Huntai (Soul Terrace). Pressing Shanyuan with the hand closes the Ghost Well; lightly touching Shenchi scatters the roots of evil; approaching Huntai ensures Yuzhen guards the pass. Thus, the spiritual root is stirred, heavenly beasts come to guard, a thousand spirits are subdued, and none can interfere with my qi; this is the result of natural law. Shanyuan below the nose is the martial passage of the whole body, the hub where true and evil energies intersect. Those who guard the True Qi can restrain all evils through their own regulation and control.