Liu Zi Jue: The Six Healing Sounds¶
TL;DR — Liu Zi Jue (六字訣, liù zì jué), the "Six Healing Sounds," is a traditional qigong that pairs six spoken sounds — xu, he, hu, si, chui, xi — with slow, gentle movement. Each sound is traditionally linked to a different organ system, but the core mechanism is simpler than that sounds: a long, shaped exhale that slows the breath and settles the attention. It needs no equipment, takes 10–15 minutes, and is gentle enough for nearly everyone.
Most qigong you will meet is about movement. Liu Zi Jue is about the breath — and specifically about the sound the breath makes. The idea is strikingly simple: make six quiet, drawn-out sounds, each with a different mouth shape, while moving gently. This page explains the history, teaches the six sounds, and shows how to practice safely.
What the name means¶
Liu (六) is "six." Zi (字) is "character" or "written word." Jue (訣) means "secret," "formula," or "knack" — the kind of instruction passed from teacher to student. So Liu Zi Jue is literally "the six-character secret": six syllables, each treated as a precise breathing formula.
The name itself is honest about its origin — a transmitted method, taught personally rather than read from a diagram. That is why the "formula" is in the sound, not in a posture.
The three registers¶
Like every core practice on this site, Liu Zi Jue is clearest in three separated layers.
Historical fact¶
The six-sound method is first clearly described by the Daoist scholar Tao Hongjing (陶弘景, 456–536 CE) in his Yangxing Yanming Lu (養性延命錄, "Record of Nourishing Nature and Prolonging Life"), where breathing methods using voiced sounds are recorded as part of the therapeutic repertoire of the period. The method was later taken up and refined by the great Tang-dynasty physician Sun Simiao (孫思邈, 581–682 CE), who associated specific breathing and sound methods with health practice in his writings.
The system as taught today — six named sounds, each with a standard organ association and a standardized movement sequence — was consolidated and standardized in the 20th century, and a modern version was published by China's sport and health authorities in the early 2000s as one of the recognized health qigong routines.
Traditional interpretation¶
In traditional teaching, each of the six sounds is associated with one of the organ systems of Chinese medicine, arranged through the Wu Xing (五行, "five phases") framework:
| Sound | Character | Pinyin | Traditional association |
|---|---|---|---|
| Xu | 嘘 | xū | Liver (肝, gān) |
| He | 呵 | hē | Heart (心, xīn) |
| Hu | 呼 | hū | Spleen (脾, pí) |
| Si | 呬 | sī | Lungs (肺, fèi) |
| Chui | 吹 | chuī | Kidneys (腎, shèn) |
| Xi | 嘻 | xī | Triple burner (三焦, sān jiāo) |
Classically, the sounds were understood to "drain" or "clear" excess from their associated organ system, restoring the smooth flow of qi — the same logic of harmonizing balance found throughout Chinese health thought. These are functional systems named after organs, not anatomical claims about literal organs.
Modern explanation¶
Read in modern terms, Liu Zi Jue is a breathing-pattern practice. Each sound is simply a way to lengthen and shape the exhale — the mouth shape and voicing naturally slow the outflow of air. Long, controlled exhalation is itself studied for its effects on relaxation and the nervous system. The organ associations are best understood as a traditional mnemonic and organizing framework, not a claim about the physical organs; the practice works as gentle breath and attention training whether or not you adopt the traditional map.
The six sounds, one by one¶
The heart of the method. Each sound is made quietly, on a long, slow exhale, with a specific mouth shape:
| Sound | Mouth shape | Rough English sound | What to notice |
|---|---|---|---|
| Xu (嘘) | Lips relaxed, corners slightly drawn | like a soft "shoo" | A gentle, diffuse release |
| He (呵) | Mouth open, jaw dropped | like "huh" (breathy) | Warmth and openness in the exhale |
| Hu (呼) | Lips rounded, pushed forward | like "who" | A full, rounded stream of air |
| Si (呬) | Teeth lightly together, lips wide | like "sss" | A thin, focused stream |
| Chui (吹) | Lips tightly rounded, small opening | like "chway" | A narrow, forceful but soft stream |
| Xi (嘻) | Mouth relaxed, slight smile | like "hee" (breathy) | An even, gentle release |
The key point: the sound is not loud. It is a whisper — enough to shape the breath, not enough to strain the throat. Inhale naturally through the nose; exhale slowly through the mouth on the sound.
A simple practice sequence¶
You can practice the six sounds in about 10–15 minutes. Here is a safe, beginner-friendly version:
- Stand comfortably, feet shoulder-width apart, knees soft, shoulders relaxed. Or sit upright if standing is difficult.
- Inhale gently through the nose, letting the belly relax.
- Exhale slowly through the mouth, making one sound — xu — for the full length of the exhale. Let the sound trail off naturally.
- Repeat the sound two to six times, then move to the next.
- Work through all six sounds in order: xu, he, hu, si, chui, xi.
- Finish with a few slow, natural breaths and a moment of quiet standing.
Add gentle arm movement only if you like — the traditional routines pair each sound with a soft arm raise or press. For beginners, the breath and sound are the whole practice.
How it relates to other practices¶
Liu Zi Jue sits naturally in the same family as the rest of the site:
| Practice | Emphasis | Relationship to Liu Zi Jue |
|---|---|---|
| Liu Zi Jue | Breath + sound | The breath-centered method |
| Baduanjin | Movement + stretch | Often practiced as a companion warm-up |
| Zhan Zhuang | Stillness + posture | The still root; Liu Zi Jue adds voiced breath |
| Dao Yin | Movement + breath | The older ancestor both descend from |
All of them rest on the same three regulations — body, breath, and attention. Liu Zi Jue simply makes the breath the lead instrument.
Common misunderstandings¶
- "The sounds cure specific organs." They do not. The organ associations are a traditional organizing framework. The practice is breath and relaxation training, not treatment.
- "You must say the sounds loudly." The opposite — they are whispered, long exhales. Loud, forced sounds strain the throat.
- "The pronunciation must be exact to work." The sounds shape the exhale; precision matters less than a slow, comfortable breath.
- "It is a religion." It has Daoist historical roots, but the modern practice requires no belief system — only breath and attention.
Who should be cautious¶
Liu Zi Jue is gentle, but a responsible note:
- Breathing is comfortable, never forced. If you feel dizzy or light-headed, you are over-breathing — shorten the exhale and rest.
- If you have a respiratory or heart condition, check with a healthcare professional before starting any breathing practice.
- You can do the whole practice seated if standing or balance is a concern.
Where to go next¶
- Qigong Breathing — the underlying breath technique, without the sounds.
- Baduanjin — the movement companion many people pair with it.
- Dao Yin — the ancient ancestor of both.
- What Is Qigong? — the parent practice.
- Glossary: Liu Zi Jue, Breathing, Wu Xing.
Frequently asked questions¶
What is Liu Zi Jue in one sentence? Liu Zi Jue (六字訣), the "Six Healing Sounds," is a traditional Chinese breathing qigong that pairs six spoken sounds with slow, gentle movement, each sound traditionally associated with a different organ system.
What are the six sounds? Xu (嘘, xū), He (呵, hē), Hu (呼, hū), Si (呬, sī), Chui (吹, chuī), and Xi (嘻, xī). In traditional teaching each is linked to a different organ system: liver, heart, spleen, lungs, kidneys, and the triple burner respectively.
Do I need to believe in qi to practice it? No. The slow breathing and gentle movement work as relaxation and breath training regardless of framework. The sounds are simply a way to shape the exhale.
How long does a session take? A full set of six sounds, with a few repetitions each, takes about 10–15 minutes. It is short enough to practice daily.
Is Liu Zi Jue safe? It is gentle and low-impact, with no equipment. As with any breathing practice, keep the breath comfortable and never strain or hyperventilate. Check with a healthcare professional if you have a respiratory or heart condition.
How is it different from Baduanjin? Baduanjin emphasizes movement and stretching; Liu Zi Jue emphasizes the breath and the spoken sound, with movement kept small and supportive. They are often practiced together.
References & further reading¶
- National Center for Complementary and Integrative Health (NCCIH). Tai Chi and Qi Gong: In Depth. nccih.nih.gov
- Jahnke R, Larkey L, Rogers C, Etnier J, Lin F. A comprehensive review of health benefits of qigong and tai chi. Am J Health Promot. 2010;24(6):e1–e25. doi:10.4278/ajhp.081013-lit-248. PMCID: PMC3085832
- Harvard Health Publishing. The health benefits of tai chi. health.harvard.edu