（六字出息，治病之旨，常道从正，变道从权）
嘘，应肝，春行之，肝病行之。
呵，应心，夏行之，心病行之。
呼，应脾，四季行之，脾病行之。
，应肺，秋行之，肺病行之。
吹，应肾，冬行之，肾病行之。
嘻，应三焦，热病行之。
右六字诀，《道藏·玉轴经》云∶言世人五脏六腑之气，因五味熏灼，又被七情六欲所乱，积久成患，以致百骸受病。
故太上悯之，以六字气诀，治五脏六腑之病。其法行时宜静，室中暖帐浓褥，盘足趺坐，将前动功略行一次。初学静功，
恐血脉不利，故先行动功，后及静功。若七日后，不必行动功。行动功毕，即闭固耳目口齿，存想吾身。要身似冰壶，
心如秋月，良久待其呼吸和血脉定，然后口中微放浊气一二口，然后照前节令行之。
假如春月，须低声念嘘字，不可令耳闻，闻即气粗，粗恐气泄。耳放嘘字气尽，即从鼻收清气，入于本经，仍及丹
田，一收一放，各二十四或三十六余放，此乃时令营运之常道也。
假如秋月患目疾，应乎肝，当行嘘字。又如春患虚黄，当行呼字，此乃权变病应之法也。
独肺部之疾，肺本主气，不得行此法，宜专行咽津工夫，降火甚捷。
凡修此道，须择子日子时起首，二十七日为期，如耳聋、虚劳、鼓膈之症，顿然自愈。行之既久，腹中自闻漉漉有
声，内视目有一种景象，百病除而精神充矣。
（六字呼气法，是治疗疾病的要领。常规情况遵循正法，特殊情况则灵活变通。）
嘘（Xu），对应肝脏，春季练习此法，可治肝病。
呵（He），对应心脏，夏季练习此法，可治心病。
呼（Hu），对应脾脏，四季皆可练习此法，可治脾病。
呬（Si），对应肺脏，秋季练习此法，可治肺病。
吹（Chui），对应肾脏，冬季练习此法，可治肾病。
嘻（Xi），对应三焦（人体上、中、下三个部位的气机通道），热病练习此法。
上述六字诀，《道藏·玉轴经》记载说：世人五脏六腑之气，因五味（酸、苦、甘、辛、咸）的熏蒸灼烧，又被七情（喜、怒、忧、思、悲、恐、惊）和六欲所扰乱，日久积累成患，导致全身骨骼肢体受病。
因此太上老君怜悯世人，用六字气诀来治疗五脏六腑的疾病。练习此法时环境宜安静，室内要有温暖的帐幔和厚实的褥子，盘腿跌坐，先将前面的动功略做一遍。初学静功的人，
担心血脉运行不畅，所以先进行动功，然后再进行静功。如果练习七日后，就不必再做动功了。做完动功后，立即封闭耳目口齿，存想自身形象。要使身体像冰壶一样清凉洁净，
心像秋月一样明亮宁静，等待良久直到呼吸调和、血脉安定，然后口中微微吐出浊气一两次，接着按照前述节气规律练习。
假如在春季，必须低声念“嘘”字，不可让耳朵听到自己的声音，听到了就会气息粗重，气息粗重恐怕会导致气机泄散。等到耳中听不到“嘘”字的声音且气尽时，即从鼻子吸入清气，进入本经（肝经），再到达丹田，一呼一吸，各二十四或三十六次以上，这是顺应时令运行的常规方法。
假如在秋季患有眼疾，因为眼睛与肝相应，应当练习“嘘”字。又如在春季患有虚黄病（黄疸的一种，属虚证），应当练习“呼”字，这是权变应对疾病的方法。
唯独肺部疾病，因为肺本身主司气机，不适合行此六字诀法，适宜专门练习咽津（吞咽唾液）功夫，降火效果非常迅速。
凡是修炼此道，必须选择子日子时开始，以二十七天为一个周期，如耳聋、虚劳、鼓膈（腹部胀大如鼓）等症状，会突然自愈。练习久了，腹中自然会发出漉漉的水声，内视眼中会出现一种景象，百病消除而精神充沛了。
(The Six-Syllable Exhalation Method is the key principle for treating diseases. The standard approach follows the orthodox path, while the variable approach adapts to specific circumstances.)
"Xu" (Hissing), corresponds to the Liver; practice it in Spring to treat Liver diseases.
"He" (Laughing), corresponds to the Heart; practice it in Summer to treat Heart diseases.
"Hu" (Blowing), corresponds to the Spleen; practice it throughout the four seasons to treat Spleen diseases.
"Si" (Purring), corresponds to the Lungs; practice it in Autumn to treat Lung diseases.
"Chui" (Blowing out), corresponds to the Kidneys; practice it in Winter to treat Kidney diseases.
"Xi" (Smiling/Jeering), corresponds to the Sanjiao (Triple Burner); practice it for Heat diseases.
Regarding the above Six-Syllable Mantra, the *Jade Axis Classic* from the *Daoist Canon* states: The Qi of the five Zang organs and six Fu organs of ordinary people is scorched by the five flavors (sour, bitter, sweet, pungent, salty) and disturbed by the seven emotions (joy, anger, worry, thought, grief, fear, fright) and six desires. Over time, this accumulates into illness, causing disease throughout the entire body.
Therefore, the Supreme Elder (Taishang Laojun) pitied them and used the Six-Syllable Qi Mantra to treat diseases of the five Zang and six Fu organs. When practicing this method, the environment should be quiet, with warm curtains and thick mattresses in the room. Sit cross-legged in a lotus position, and first perform the preceding Dynamic Qigong exercises briefly. For beginners in Static Qigong,
to prevent poor blood circulation, one should first perform Dynamic Qigong before proceeding to Static Qigong. After seven days of practice, there is no need to continue with Dynamic Qigong. After completing the Dynamic Qigong, immediately seal the ears, eyes, mouth, and teeth, and visualize one's own body. One should feel as cool and pure as an ice pot,
and have a mind as bright and calm as the autumn moon. Wait for a long time until breathing harmonizes and blood flow stabilizes. Then, gently exhale turbid air once or twice from the mouth, and then proceed according to the aforementioned seasonal rhythms.
For example, in Spring, one must recite the character "Xu" in a low voice, ensuring that one does not hear it with one's own ears. If heard, the breath becomes coarse, and coarse breath may lead to the leakage of Qi. Once the sound of "Xu" fades from hearing and the breath is exhausted, inhale clear Qi through the nose, guiding it into the corresponding meridian (Liver Meridian) and finally to the Dantian (Energy Center). Each inhalation and exhalation cycle should be performed twenty-four or thirty-six times or more. This is the standard method of following the seasonal operations.
For instance, if one suffers from eye diseases in Autumn, which correspond to the Liver, one should practice the "Xu" syllable. Similarly, if one suffers from Deficiency Jaundice in Spring, one should practice the "Hu" syllable. These are methods of adaptive treatment for specific conditions.
However, for Lung diseases specifically, since the Lungs govern Qi, this Six-Syllable method is not suitable. Instead, one should specialize in the practice of swallowing saliva (Yin Jin), which rapidly reduces Fire.
Anyone cultivating this Daoist practice must choose the Zi hour (11 PM - 1 AM) on a Zi day to begin, with a period of twenty-seven days as one cycle. Symptoms such as deafness, consumptive fatigue (Xu Lao), and drum-like abdominal distension (Gu Ge) will heal suddenly. With prolonged practice, gurgling sounds will naturally be heard in the abdomen, and one will perceive specific visions during internal visualization. All diseases will be eliminated, and spirit and vitality will become abundant.