Light touch only; never press in between the ribs.
神封 Shenfeng
“Spirit’s Seal” · KI23
Foot Shaoyin · 23 of 27
Where. In the rib space level with the nipple, halfway between the breastbone and the nipple.
For. Cough; fullness of the chest; poor appetite.
Press. A light fingertip touch on the surface, about a minute each side.
Caution. Light touch only; never press in between the ribs.
神封，在靈墟下一寸六分陷者中按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Shenfeng Sits on the Chest Wall
The dataset places Shenfeng on the chest, in the fourth intercostal space, two cun lateral to the anterior midline. A cun is the traditional proportional unit of Chinese point-location: lengths measured against the person being examined rather than against a ruler, with the width of one’s own thumb serving as the classic rough equivalent. Two cun from the midline therefore means roughly two thumb-widths toward the side — almost exactly halfway between the body’s centre line and the vertical line through the middle of the nipple, since tradition measures that nipple line four cun out. Counting the soft gaps between ribs downward from just beneath the collarbone, the point occupies the fourth such gap.
What lies under the fingertips here calls for a light touch. The area sits on the upper-front sweep of the pectoralis major; beneath the muscle run ribs separated by thin layers of intercostal tissue, and beyond those the cavity the lungs occupy. Because the point shares its horizontal level with the centre of the nipple yet sits much nearer the breastbone, it rests over the parasternal strip where the rib gaps are narrowest and deeper structures lie closest to the skin. Nothing about self-palpation here needs force: the landmarks announce themselves under slow, patient contact, and the whole region answers better to gentleness than to pressure.
The kidney channel’s six chest points form a neat vertical ladder two cun wide of the midline, and Shenfeng occupies its second step from the bottom. Bulang (KI22) sits directly below in the fifth intercostal space; Lingxu (KI24) waits directly above in the third. Above those, Shencang (KI25) climbs to the second space, Yuzhong (KI26) to the first, and Shufu (KI27) settles into the depression at the lower border of the collarbone itself. Locating the ladder confirms every placement: once one step is certain, its neighbours are found simply by moving one gap up or down along the same vertical line.
A Self-Palpation Walkthrough
Settle in first: seated upright or lying back with shoulders released, so the chest muscles soften. Warm your hands if they are cold — chilled fingertips meet guarded muscle. The simplest route starts at the midline. Find the height midway between the two nipples; directly on the midline at exactly that level lies Danzhong (CV17), which the dataset describes as sitting level with the fourth intercostal space. From there walk sideways two thumb-widths until your finger settles into the shallow groove between ribs at that height: level with the nipples but close to the breastbone, this groove marks the search area for Shenfeng. Check both sides separately — the two grooves rarely feel identical.
A second route suits anyone whose nipple reference is hard to judge. Look to the top of the chest instead: just beneath the collarbone runs the first rib, and the first soft gap below it is the first intercostal space. Walk your fingertip down the rib edges one gap at a time — first, second, third — until you reach the fourth groove, then slide inward toward the breastbone until you are about two thumb-widths from the midline. Confirm before pressing: touch feather-light and compare sides, letting a slow breath move under your fingers so the groove widens slightly as the ribs lift. Most people notice a faint dull awareness at the true spot and little sensation a width away.
Two slips account for most misses. The first is horizontal: drifting outward onto the stomach channel’s wider line, which passes through the nipple itself four cun from the midline. If your groove keeps company with the nipple, you have wandered too far out — return toward the breastbone. The second is vertical: losing count among the spaces, usually sliding one too low into the fifth. Counting twice, slowly, from the collarbone down beats trusting memory, and the neighbouring ladder helps — if two grooves feel equally plausible, establish the fourth from the midline landmark instead and work outward from certainty.
Reading the Name: Spirit’s Seal
Two characters carry the whole image. Shen 神 means spirit — the animate presence tradition locates in the heart, the brightness in the eyes, the vitality behind thought and feeling. Classical teaching says the heart stores the shen, and this point stands on the chest wall close beside that dwelling place. Feng 封 carries the sense of sealing, enclosing, and conferring — the gesture of setting a boundary around something valued. Commentators across the centuries have therefore read Shenfeng as the spirit’s seal or the sealing of the spirit: an enclosure guarding the residence of the heart-mind, or a gate where the brightness gathers and is kept. Read either way, the name speaks of protection rather than passage.
The character feng rewards a closer look. Its older form pictures earth heaped and trees planted along the edge of granted land — the ancient rite of marking out a fief — and from that boundary-marking grew its long train of meanings: to enfeoff, to confer territory, to close up, to seal. Modern Chinese keeps them all: xinfeng 信封 is an envelope, fengbi 封閉 means sealed shut, and letters are still counted with feng. Shen, meanwhile, sets the altar radical beside a phonetic companion, a pairing old enough that its earliest senses already concerned the sacred and the animate. Together the pair draws a small picture: something precious, formally enclosed, honoured at its edge.
Pinyin writes the name Shénfēng. Dictionaries give shen the rising second tone — the voice lifting upward through the syllable — and feng the high-level first tone, held flat and steady like a sustained note. Say them in order and the name performs its own meaning: a rise, then a settled hold, motion arriving at rest. The hanzi pair is compact enough to memorise at a glance, and like several points on this final stretch of the kidney channel it takes its name from the spirit realm rather than from valleys or marketplaces — a quiet neighbourhood of names, among which Shenfeng’s seal stands as member.
Traditional Indications, Explained
The recorded indications read: cough, asthma, fullness and pain of the chest and hypochondrium, breast abscess, vomiting, and poor appetite. Framed as tradition rather than promise, the first pair belong together in the old records: asthma gathered under one heading a family of noisy, effortful breathing patterns that modern readers would sort differently. Fullness describes a subjective weight or stuck quality felt across the chest, while the hypochondrium is the flank — the soft region running along the lower ribs at the sides of the trunk. Pain recorded there was understood, in the traditional frame, as qi and blood failing to move freely, and points on the chest wall were where classical practice reached for it.
The remaining entries make better sense beside their neighbours on the same ladder. Breast abscess appears again at Bulang (KI22) directly below, and the whole line hugs the chest wall beside the breast territory, which is where classical texts grouped complaints of that region. Vomiting is shared with Youmen (KI21) on the upper abdomen and with Shencang (KI25) above, while poor appetite recurs at Shencang as well. And one observation emerges from simply reading the catalogue: every one of the kidney channel’s six chest points, from the fifth intercostal space up to the collarbone, records both cough and asthma among its actions. Whatever else divided them, the old compilers agreed that this final ascent belonged to the breath.
It bears repeating plainly: these are the traditional uses recorded in a licensed dataset and classical literature, offered here for cultural and historical understanding. They are not claims that pressing this point treats disease, and nothing in this guide replaces assessment by a qualified clinician. Where modern research touches self-applied pressure at all, reviews suggest effects are modest and dependent on context, and evidence specific to any single point remains thin. Hold the tradition lightly, and hold the safety rules firmly.
Self-Care Acupressure at Home
With Shenfeng located by the walkthrough above, settle into position: seated tall but unforced, or lying back, shoulders heavy, chest unguarded. Curl your index and middle fingers together and rest the pads — never the tips — in the fourth-space groove you found. Begin with contact alone for a few slow breaths, letting the ribs move under still fingertips; then add small, gentle circles, letting the skin glide across the tissue rather than grinding against the rib edge. Pressure should register as faint dullness or mild warmth, nothing sharper. A common home rhythm is one to three minutes per side, once or twice daily, matched where possible to slow exhales so each circle rides the breath out. Swap hands and repeat on the other side, keeping the two sessions even.
Quality matters more than duration here — more than on most points, because this stretch of chest wall sits over narrow rib gaps and answers best to the lightest touch. Light, patient, regularly repeated contact fits the wellness register this page practises; hard jabbing teaches the body nothing and can leave the chest guarded for days. If your hands are cold, warm them first, since chilled muscle braces against contact. Choose a quiet corner rather than a screen: the practice doubles as a breathing pause — inhale through the nose, feel the upper chest widen under resting fingertips, press gently on the long exhale. Readers who keep a routine often anchor it to an existing habit, morning or evening, because consistency rather than intensity is what self-care traditions actually ask.
Treat the exercise as a small ceremony of attention, not a treatment session. Across weeks you may notice the area feels less guarded, that breathing feels smoother while your fingers rest there, or simply that you spent two minutes attending to your own chest — every one of those outcomes fits the honest scope of self-acupressure. What does not fit is escalation: pressing harder, longer, or deeper to force a result, especially this high on the chest wall. When curiosity pulls that way, return to gentleness or stop for the day; the point has no errand that requires force.
Cautions and Safe Practice
The licensed record attaches a clear warning to this site: practitioners are directed not to needle deeply, and whatever adjustments the caution permits are reserved for trained hands. That instruction belongs to professional technique, but its reason concerns everyone. The fourth intercostal space is still high ground on the chest wall; only skin, a thin layer of muscle, and soft tissue separate the surface from the rib gap and what lies beyond it. Deep work driven straight inward at this strip risks real injury. Professional training manages that risk with exact skill; home self-care manages it differently and far more safely — by never leaving the surface at all.
For fingertip acupressure the practical rules follow plainly. Use the pads of the index and middle fingers, never tips, knuckles, elbows, or tools, and keep the intention strictly in skin and superficial muscle. Pressure should register as pleasant dullness or mild warmth — never sharpness. Skip the point entirely during feverish illness or any acute episode, over broken or irritated skin, and over any area of the breast that is hot, swollen, painful, or newly changed; an unexplained breast lump or discharge belongs with a doctor promptly, not under a self-care routine. Sharp, electric, or radiating sensation means stop at once, and pregnant readers should consult a qualified practitioner before adding any new point practice.
And the wider rule stands over everything: this page is educational, and acupressure is self-care, not diagnosis or therapy. Seek prompt medical care — not a longer pressing session — for chest pain, breathlessness at rest or on mild effort, coughing blood, a cough that will not settle across weeks, fever with chest symptoms, or any symptom that frightens you. Persistent complaints belong with a licensed practitioner, whether medical or East Asian medical as suits the situation. The seal imagery is elegant, but its honest lesson for most readers is restraint: guard the boundary, stay on the surface, and let gentleness be the whole technique.
Shenfeng, the Spirit’s Seal, stands on the front of the chest at the fourth intercostal space, two cun out from the midline. Classical practice reached for it amid cough, laboured breathing, and heaviness across chest and ribs. This guide walks through locating it by touch, reading the story in its name, and pressing it gently — with care, because this stretch of chest wall deserves respect.
Cautions from the classical sources
- Keep insertion shallow, with an oblique or transverse angle.
Self-care limits
Frequently asked
- How do I find Shenfeng without knowing anything about cun?
- Count down from the collarbone. Just beneath the collarbone runs the first rib, and the first soft gap below it is the first intercostal space; walk your fingertip down the rib edges one gap at a time — first, second, third, fourth — then slide inward toward the breastbone until you are about two thumb-widths from the midline. That shallow groove is where the dataset places Shenfeng. If the count ever feels uncertain, cross-check at the midline: the height of the centre of the nipples marks the fourth intercostal space, where Danzhong sits — settle that level first, then step two thumb-widths sideways. Cun measurements simply encode the same sequence in proportional language.
- Is pressing Shenfeng myself actually safe?
- Gentle fingertip pressure held on the surface is generally reasonable self-care for healthy adults, because it works in skin and superficial muscle, far short of the structures behind the ribs. The recorded danger concerns deep techniques reaching toward the chest cavity — a category home acupressure never approaches. Respect the stop signals all the same: sharp pain, radiating sensation, or discomfort that worsens all mean finish immediately and try nothing further that day.
- What did classical practice use Shenfeng for?
- The traditional record lists cough, asthma-pattern breathing, fullness and pain of the chest and flanks, breast abscess, vomiting, and poor appetite. Classical texts group it with the kidney channel’s climb up the chest, whose six stations all carry breath-related indications. Those frameworks document how the tradition understood the body — cultural context, not evidence-backed treatment claims.
- Why does the kidney channel end its journey on the chest?
- The channel begins far away: classical descriptions follow it from the sole of the foot, up the inner leg, and onward to the chest, where its last six points stand shoulder to shoulder two cun from the midline. Tradition reads the ascent as water rising to nourish what sits above, and the shared cough-and-asthma record across those final stations shows the compilers treating the journey’s end as the breath’s address. It is a poetic map, but a coherent one.
- When should I skip Shenfeng and see someone instead?
- Skip it whenever anything acute is happening: fever, an active breathing difficulty, broken or irritated skin, or a breast area that is hot, swollen, painful, or newly changed. An unexplained lump or discharge needs medical assessment promptly — self-care is never a substitute for that. And if symptoms persist despite gentle routines, take them to a licensed practitioner; by then the point has already done its most honest work — teaching you where your own chest wall is, kindly.
Sources
- 01WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), World Health Organization — nomenclature conventions.
- 02A Manual of Acupuncture, Peter Deadman, Mazin Al-Khafaji and Kevin Baker — point-name tradition and channel context.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for KI23 Shenfeng — location, actions, and indication record.
Last reviewed
牌記This leaf, for machines
Old books ended with a colophon saying who printed them. Every leaf here carries the same facts as structured data for agents and search, with no layout in the way.
- GET /en/points/ki23/leaf.json
- GET /zh-hant/points/ki23/leaf.json
- GET /zh-cn/points/ki23/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "KI23",
"name": {
"en": "Shenfeng",
"gloss": "Spirit’s Seal",
"zh-Hant": "神封",
"zh-Hans": "神封"
},
"channel": {
"id": "KI",
"order": 23,
"of": 27
},
"location": {
"text": "In the rib space level with the nipple, halfway between the breastbone and the nipple."
},
"for": [
"cough",
"fullness of the chest",
"poor appetite"
],
"press": {
"text": "A light fingertip touch on the surface, about a minute each side.",
"seconds": 60,
"sides": "both"
},
"cautions": [
"Light touch only; never press in between the ribs."
],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/ki23",
"lastReviewed": "2026-08-24"
}