戌亥二时，上床仰卧，枕高四指，四肢宜伸，以鼻收气于右肾，火从口中嘻出，默数百次。却
以右肋着席卧，蜷两足，钩两腿，一手掩脐，一手掩外肾。古人云∶三焦须是卧
嘻行。又云∶睡如猫，精不逃，睡如狗，精不走。是为养元之大法也。
老年夜起频诩，亦一病也。昔林某频诩，一道人教以擦肾法。每卧时坐床垂足，
解衣闭气，舌柱上 ，目视顶，提谷道，以手擦两肾 穴各三十六，少息，至四十
九、至四十一，多多益善，行之旬日，果称奇妙。
每日趺坐，两足相向，闭目握固，缩谷道，一手扳足趾，一手擦摩足心，至极妙
，少息、再行，日五六度，能令步履轻捷。昔欧恩忠晚年患足疮，痛不可忍，得此法
，用之三日而愈。盖此穴在足心，湿气皆从此入也。
卧时必须蜷足、侧睡，以敛其形，若仰卧则神荡矣。
手不固，则心血不生。若行功时，必须将大拇指捏在四指根间，握固而定。
齿不固，则经络不通。若行功时，必须口紧闭，牙齿着实咬定，而不可放也。
行功时必要舌抵上 ，则舌下玄膺穴开矣。此穴开，真气可流通于周身百节，若闭无益。
身必正，头必直，背脊如铁柱，盘膝端坐，以眼垂帘，观鼻、观脐。如身屈曲、头缩，气即
不能通矣。
戌时和亥时（晚上7点至11点），上床仰卧，枕头高度约为四指宽，四肢应当伸展，用鼻子将气息吸入右肾，从口中发出“嘻”的声音将火气呼出，默数次数达数百遍。然后改为右侧卧位，身体蜷曲双腿，双手分别捂住肚脐和外生殖器。古人说：“三焦之气必须通过侧卧并配合‘嘻’字诀来运行。”又说：“睡觉像猫一样警觉，精气就不会外泄；睡觉像狗一样懈怠，精气就会流失。”这是保养元气的大法。
老年人夜间频繁起夜排尿，也是一种病症。过去有位林姓患者频繁起夜，一位道士教给他擦肾法。每次准备睡觉时，坐在床边垂下双脚，解开衣物，屏住呼吸，舌尖抵住上颚，眼睛注视头顶，提缩肛门，用手摩擦两侧肾俞穴各三十六次，稍作休息，可增至四十九次或四十一至四十九次之间，越多越好。坚持施行十天左右，果然效果奇妙。
每天盘腿端坐，两脚相对，闭目握固（拇指掐入无名指根部，其余四指握住拇指），收缩肛门，一手扳住脚趾，另一手摩擦足心涌泉穴，感觉极其美妙，稍作休息后再行，每天五到六次，能使步履轻盈敏捷。过去欧恩忠晚年患足疮，疼痛难忍，得到此法，使用三天便痊愈了。因为这个穴位在足心，湿气都从此处侵入人体。
睡觉时必须蜷曲双脚、侧身而睡，以收敛身形，如果仰卧则会导致神气涣散。
手部如果不保持握固姿势，心血就无法生成。如果在练习功法时，必须将大拇指捏在四指的根部，握固而定。
牙齿如果不坚固，经络就不通畅。如果在练习功法时，必须紧闭嘴巴，牙齿用力咬合固定，不可放松。
练习功法时必要舌尖抵住上颚，这样舌下的玄膺穴就会打开。这个穴位一旦打开，真气就可以流通于全身各个关节，如果闭合则没有益处。
身体必须端正，头部必须正直，背脊像铁柱一样挺直，盘膝端坐，眼帘低垂，目光内视鼻尖或肚脐。如果身体弯曲、头部收缩，气就不能通畅了。
坐着时如果睁开眼睛，神气就不能凝聚，适宜闭上眼睛。或者想象上下左右的方向，只需将瞳孔朝向那个方向即可。倘若修炼大道，眼睛要低垂眼帘；调养疾病一定要闭目藏神，这才是有益的。
During the Xu and Hai hours (7:00 PM to 11:00 PM), lie supine on the bed with a pillow height of approximately four fingers. Extend the limbs, inhale Qi into the Right Kidney through the nose, and exhale Fire from the mouth making the "Xi" sound, repeating this silently for hundreds of times. Then, turn to lie on the right side, curling both legs, hooking both thighs, covering the navel with one hand and covering the external genitalia with the other. The ancients said: "The Sanjiao (Triple Burner) Qi must be circulated while lying on the side and performing the 'Xi' technique." They also said: "Sleep like a cat, and Essence will not escape; sleep like a dog, and Essence will not stay." This is the great method for nourishing Yuan Qi (Original Qi).
Frequent nocturia in the elderly is also a disease. In the past, a certain Mr. Lin suffered from frequent nocturia. A Daoist priest taught him the Kidney Rubbing Method. Whenever preparing for bed, he would sit on the edge of the bed with feet hanging down, undress, hold his breath, press the tongue against the upper palate, gaze at the crown of the head, lift the Huiyin area (anal sphincter), and rub both Shenshu acupoints (Kidney-Shu) with his hands for thirty-six times each. After a brief rest, he could increase it to forty-nine times, or between forty-one and forty-nine times; more is better. Practicing this for ten days yielded miraculous results.
Sit daily in the lotus position (Duzu), with soles of the feet facing each other, eyes closed, hands forming Gu (firm grip), contract the anus, pull the toes with one hand, and rub the sole of the foot with the other. It feels extremely wonderful. Rest briefly and repeat. Doing this five to six times a day can make steps light and agile. In the past, Ou Enzhong suffered from leg ulcers in his later years, with unbearable pain. He obtained this method and was cured after three days of use. This is because this acupoint is located in the center of the foot, where Dampness enters the body.
When sleeping, one must curl the feet and sleep on the side to gather the form; if sleeping supine, Shen (Spirit) will dissipate.
If the hands are not firm (holding Gu), Heart Blood cannot be generated. When practicing Gong (Qigong exercises), one must pinch the thumb between the roots of the other four fingers, holding Gu firmly.
If the teeth are not firm, the meridians and collaterals will not be unobstructed. When practicing Gong, one must keep the mouth tightly closed, bite the teeth firmly, and not relax them.
When practicing Gong, it is necessary to press the tongue against the upper palate, which opens the Xuanying acupoint under the tongue. Once this acupoint is open, True Qi can circulate freely throughout all joints of the body; if closed, there is no benefit.
The body must be upright, the head straight, the spine like an iron pillar. Sit cross-legged with dignity, lower the eyelids (like curtains), and gaze inwardly at the nose or the navel. If the body is bent or the head shrunk, Qi cannot flow smoothly.
Opening the eyes while sitting causes Shen to scatter; it is advisable to close them. Or, if visualizing directions up, down, left, or right, simply direct the pupils toward that direction. If cultivating the Great Dao, the eyes should be lowered; if recuperating from illness, one must close the eyes to store Shen, which is beneficial.