钱氏云∶疮疹惟用温平药治之，不可妄下，及妄攻发。《活人书》云∶小儿疮
疹与伤寒相类，头痛身热，足冷脉数，疑似之间，只与升麻汤解肌，兼治疮子，已
发未发皆可服，但不可疏转，此为大戒。伤寒身热，固不可下，疮疹发热在表，尤
不可转，世人不学，乃云初觉以药利之，宣其毒也，误矣。（海藏云，此论虽当，在经则可，若
热甚过极足冷，或内伤腹热足冷，宜以寒药如洗心、调胃，及化食药通膈之类主之，
然当求责脏腑秘与不秘，脉道何如耳。许氏云，上热下冷，伤食也， 疹初热，手足亦冷，
惟伤寒一身尽热，不与足冷相类，此伤食，非伤冷也，若伤冷不宜用。王德孚用感应丸治之。）
痘疮已出，不可疏转，出得已定，脓血太盛，却用疏利、亦非也。（海藏云，此言若在经而出
不尽者为当，若腹胃有垢腻，便时后重如痢疾，及脉滑在里者，亦当微下。）大抵疮疹首
尾皆不可下。（海藏云，脏府有凝滞者，不可拘此。）小儿身耳尻冷，咳嗽，辄用利药，即害人。
（海藏云，此言里和而少阳之气，在经热者，故用化毒犀角汤，为气出里，若气未出，里未尽，求责疏利，亦可。）
凡治疹痘，才泻则令内陷，决不可轻易转下，惟大小便多日不利，宜微微利之，及痘已靥，
尚有余热停留，或作热，或作疮痍，或成痈，宜四顺饮下之，不特消余毒，亦免生
他证，累试累验。每见疹痘者服发表麻黄药出汗，阳气尽出肤表，遂至 烂脏虚，
虚则腹痛自利，或作寒战，或作阴痫，死者多矣。凡疮疹证见及 点既生，若
无内外寒热虚实者，但安养之，任其自然，则非惟不生他证，亦易于调理，今人则才
见点，罔顾所蕴轻重，惟恐不出，用药表之，服以紫草、蝉蜕，副以人齿、猴梨，
并与酒曲芫荽，无所不试，曾不知毒瓦斯遇发，则一倍变为十倍，十疮合为一疮，名
为烂，五内七窍，至于皆有，则重者不救，轻者为声哑，为目疾，为 烂，为闭
耳塞鼻之患。又有过用表药，里无阳气以应之，为虚脱者多矣，此妄表之过也。大
抵疮疹已出，正赖胃气运其毒瓦斯，善攻其热者，热甚则利小便，盖小便利，则心火
有所导引，虽不用冷药，热亦自减矣。热轻则解其热，盖小热不解，大热必生，小
热而利其小便，则虑损气，故但当解热也。利小便之药导赤散为上，解毒之剂如玳
瑁汤、独胜散、安 散、如圣散、紫草汤、犀角饮皆可选用。昧者但言疮疹是热，
时进凉剂，致胃气转虚，令儿胸满腹胀，又且下之，内虚毒入，则杀人甚速，此不
善下之过也。若小儿鼻塞唇焦，内伏热也。脉细，面色痿黄或青色，皮肤慢，口吐
青涎者，此误下证也，或里无蕴热，亦何可下？要之，治热以温，凉而行之，未至
于冷。治寒以温，未至于热。当从其渐而已。洁古云∶大凡 疹首尾皆不可下，
恐动则生变，此谓少阳通表，宜和之也。当先安里解毒，次微发之，解毒须安五脏，
防风汤是也。如大便不秘者，须微发之，药宜钱氏方中选而用之。如大便过秘，宜
微利之，当归丸、枣变百祥丸是也。初知 疹，若使之并出，小儿难禁，是以别
生他证也。首尾不可下者，首曰上焦，尾曰下焦，若既吐利，安可下，便宜安里。
若不吐泻者，先与安里药三五服，如能食而大便秘结内实者，宜疏利之。若内虚而
利者，宜用安里药一二服，末后一服调以微发之药，要之，安里之药多，发表之药
少，秘则微疏之，令邪气勿壅并，而能作番次出，使儿易禁也。身温者顺，身凉者
逆，二者，宜多服防风汤和之。（防风汤方见大法。）海藏云∶假令五日已里，诸病与 疹
不能别辨者，不可疑作 疹，必须发之，但各从其所伤应见治之，皆不妨 出，若
强发之，其变不可胜数矣。前人言首尾俱不可下者，为 未显于表，下则邪气不得
伸越，此脉证有表而无里，故禁首可下也。尾不可下者为 毒已显于外，内无根
蒂，大便不实，无一切里证，下之则 气逆陷，故禁尾不可下也。又言温暖盖覆，
不令通风，以 未出，或身表凉而恶寒，或天令寒而恶冷，温暖盖覆，不令通风也，
若已出，身热天暄，何必用盖覆而不使之通风乎，后人执此二句，首尾俱不敢下，
温燠不令通风，不知天令之所加，人身之所盛，致使误人多矣。大抵前人之言，随
时应变，后之人不知其变，故常执而不移也。噫、首尾俱不可下者，以其始终脏腑
元无凝滞也，若有一切里证，及大便结者，安得不下。温暖不使之通风，以其发在
冬时，故如此也，若发在夏时， 虽未出，亦不用此也。 之用药，大率以脉为主，
浮中沉之诊，平举按之，候察其虚实，定其中外，则可以万全矣。〔万〕今之治痘
者曰首尾不可汗下，听者和之，曰痘宜温补，汗下，不可也。此亦喜补恶攻之遗弊。
殊不知治痘之法，莫要于解毒，或攻或补，务使毒瓦斯得解而已，如其气血和畅，荣
卫流通，表里无邪，其出则尽，其发则透，其收则时，非但不可汗下，虽温补亦不
可用也。设使外感风寒，约束皮肤，闭密腠理，疮出不快，此当汗之，令阴阳和，
荣卫通，而疮易出，毒得解散可也，苟不汗之，则毒无从得出，留伏于内，未免闭
门留寇之祸矣。如大热不退，烦渴转增，谵妄昏沉，便溺阻塞，此毒蓄于肠胃之间，
与谷气并，宜急下之，使脏腑疏通，陈 涤去可也，苟不下之，则藏污蓄毒，
煎熬于中，宁无养虎遗患之悔乎。故大要曰∶谨守病机，各司其属，有者求之，无
者求之，盛者责之，虚者责之，必先五胜，疏其血气，令其条达，而致和平。此之谓也。
钱乙说：治疗疮疹（天花、麻疹等出疹性疾病）只宜使用性质温和平和的药物，不可随意使用泻下药，也不可随意使用攻伐或发汗药。《活人书》说：小儿的疮疹与伤寒症状相似，都有头痛、身体发热、脚冷、脉搏快的表现，在难以辨别的时候，只给予升麻汤来解肌发表，同时也能治疗疮疹，无论疮疹是否已经发出都可以服用，但绝对不可以使用导致腹泻滑利的药物，这是非常重要的禁忌。伤寒引起的身体发热，本来就不可以用泻下法；疮疹引起的发热是在体表，更不可以使用通利大便的方法。世人不学习医理，竟然说初起时用药物通便以宣排毒邪，这是错误的。（张元素即海藏先生说：这个理论虽然正确，但如果病邪在经络则适用；如果热势极盛导致脚冷，或者内伤饮食导致腹部发热而脚冷，应当使用寒凉药物，如洗心散、调胃承气汤，以及消食化积、开通膈窍之类的方剂主治，但应当审察脏腑是否有凝滞不通，脉象如何。许叔微说：上热下冷，是伤食的表现。疮疹初起发热时，手足也是冷的，只有伤寒是一身都发热，不与脚冷相似，这是伤食，不是受寒，如果是受寒就不宜用上述方法。王德孚用感应丸治疗。）痘疮已经发出后，不可以使用通利大便的药物；痘疮已经出齐，脓血过多时，却再用通利药物，这也是不对的。（张元素说：这种说法适用于病邪在经络且痘疮未能完全发出的情况；如果肠胃中有积垢腻滞，排便时有里急后重感像痢疾一样，以及脉象滑数提示病邪在里的，也应当轻微使用泻下法。）大抵来说，疮疹在初期和末期都不可以使用泻下法。（张元素说：如果脏腑有凝滞不通的情况，就不必拘泥于这一条。）小儿出现耳朵、屁股发冷，咳嗽，就随意使用泻利药物，就会伤害病人。（张元素说：这话是指体内平和而少阳经气在经络中发热，所以用化毒犀角汤，因为气机向外透发；如果气机尚未完全透出，体内也未完全调和，寻求通利的方法，也可以。）凡是治疗疹痘，一旦腹泻就会导致邪气内陷，决不可以轻易使用泻下法，只有当大小便多日不通利时，才适宜微微通利一下，以及痘疮已经结痂脱落，尚有余热停留，或者表现为发热，或者形成疮疡，或者成为痈肿，适宜用四顺饮泻下，这不仅是为了消除余毒，也是为了免除产生其他病证，多次尝试都验证有效。经常见到患疹痘的人服用发表性质的麻黄类药物出汗，导致阳气全部耗散在体表，从而造成内脏虚损，虚损则引起腹痛自利，或者发生寒战，或者发生阴痫，死亡的很多。凡是疮疹病症显现及痘点已经生成，如果没有内外寒热虚实等复杂情况，只要安心调养，顺应自然，那么不仅不会生其他病证，也容易调理。现在的人一看到痘点，不顾体内蕴结毒邪的轻重，唯恐痘出不来，用药发散，服用紫草、蝉蜕，配合人齿、猴梨，再加上酒曲、芫荽，无所不用其极，却不知道毒邪遇到发散的药力，会由一倍变为十倍，十个疮合并为一个疮，称为“烂”，五脏七窍都会受到波及，重的无法救治，轻的会导致声音嘶哑、眼疾、皮肤溃烂、耳闭鼻塞等祸患。又有过度使用发散药物，导致体内没有阳气来呼应，造成虚脱的也很多，这是妄用发散药的过错。大抵疮疹已经发出，正依赖胃气来运解毒邪，善于清除热邪的，热势重时就通利小便，因为小便利，心火就有引导出路，即使不用寒凉药，热也会自然减退。热势轻时就解除热邪，因为小热不解，大热必生，小热而通利小便，担心损伤正气，所以只应当清热。通利小便的药物以导赤散为上品，解毒的方剂如玳瑁汤、独胜散、安宫散、如圣散、紫草汤、犀角饮都可以选用。愚昧的人只说疮疹是热证，时常进服凉剂，导致胃气更加虚弱，使孩子胸满腹胀，又再用泻下药，导致内部虚损毒邪内陷，杀人很快，这是不善于使用泻下法的过错。如果孩子鼻塞嘴唇焦干，是内有伏热。脉象细，面色萎黄或青色，皮肤松弛，口吐青涎的，这是误用泻下法导致的证候，如果体内没有蕴结的热邪，怎么可以泻下？总之，治疗热证用温药，但要凉着服用，不至于太冷。治疗寒证用温药，但不至于太热。应当循序渐进。张元素说：大凡疹痘在初期和末期都不可以泻下，恐怕一动就会产生变证，这是指少阳经气通达体表，适宜调和。应当先安定里气并解毒，其次轻微发散，解毒必须安护五脏，防风汤就是这样的方子。如果大便不秘结，需要轻微发散，药物应当在钱乙的方剂中选择使用。如果大便过于秘结，适宜轻微通利，当归丸、枣变百祥丸就是这样的方子。刚开始知道出疹痘，如果让它一起出来，小儿难以承受，因此会产生其他病证。初期和末期不可泻下的意思是：初期指上焦，末期指下焦，如果已经呕吐腹泻，怎么可以再泻下，应当先安定里气。如果不吐不泻，先给安定里气的药物三五服，如果能进食且大便秘结体内实热的，适宜通利。如果体内虚损而有腹泻的，适宜用安定里气的药物一二服，最后一服用轻微发散的药物调治，总之，安定里气的药多，发散表邪的药少，便秘则轻微疏通，使邪气不要壅滞聚集，能够分批透出，使小儿容易耐受。身体温暖的为顺证，身体发凉的为逆证，这两种情况，适宜多服用防风汤来调和。（防风汤方见大法篇。）张元素说：假如五天内，各种病症与疹痘不能明确辨别的，不要怀疑是疹痘，必须发散，但各自根据所受的病邪应见的症状进行治疗，都不妨碍疹痘透出，如果强行发散，产生的变证不可胜数。前人说初期和末期都不可泻下，是因为疹痘未显于体表，泻下则邪气不得伸展透越，这是脉证有表而无里，所以禁止初期可下。末期不可下是因为毒邪已显于外，内部没有根基，大便不实，没有一切里证，泻下则痘气逆陷，所以禁止末期不可下。又说温暖覆盖，不让通风，是因为疹痘未出，或者身体表凉而恶寒，或者天气寒冷而怕冷，所以要温暖覆盖，不让通风。如果已经发出，身体发热天气暖和，何必还要覆盖而不让通风呢？后人执着于这两句话，初期和末期都不敢泻下，温暖覆盖不让通风，不知道天时变化和人体盛衰，致使误人很多。大抵前人的言论，是随时间变化而应变的，后人不知道其中的变化，所以常常固执不变。唉！初期和末期都不可泻下，是因为始终脏腑原本没有凝滞；如果有一切里证，以及大便结实的，怎么能不泻下？温暖不让通风，是因为发生在冬季，所以如此；如果发生在夏季，即使疹痘未出，也不用这种方法。治疗疹痘的用药，大体以脉象为主，通过浮、中、沉三部诊法，平举、轻按、重按，候察虚实，确定病位在中还是在表，就可以万无一失了。〔万全〕现在的治痘医生都说初期和末期不可发汗和泻下，听信的人附和说：痘疮适宜温补，发汗和泻下是不可以的。这也是喜欢补益厌恶攻伐留下的弊端。殊不知治疗痘疮的方法，最重要的是解毒，或者攻邪或者补虚，务必使毒邪得到解除而已。如果气血和畅，营卫流通，表里没有邪气，那么痘疮就能出尽，发出透彻，收靥按时，不仅不可发汗泻下，即使是温补也不可用。假设外感风寒，约束皮肤，闭塞腠理，痘疮出不畅快，这应当发汗，使阴阳调和，营卫通畅，而痘疮容易发出，毒邪得以解散，这是可以的。如果不发汗，则毒邪无从得出，留伏在内，难免有“闭门留寇”的祸患。如果大热不退，烦躁口渴加重，胡言乱语昏沉，大小便阻塞，这是毒邪蓄积在肠胃之间，与谷气搏结，应当紧急泻下，使脏腑疏通，陈腐污秽去除，这是可以的。如果不泻下，则藏污纳垢蓄积毒邪，在体内煎熬，难道不会有养虎遗患的后悔吗？所以纲要说：谨慎地守住病机，各司其职，有的求其因，无的求其源，盛的责其过，虚的责其亏，必先了解五行胜复关系，疏通气血，使其条达顺畅，从而达到和平状态。说的就是这个道理。
Qian Yi stated: For the treatment of chuangzhen (exanthematous diseases such as smallpox and measles), only mild and neutral medicines should be used. One must not recklessly administer purgatives, nor indiscriminately use攻伐 (attacking/draining) or diaphoretic methods. The *Huoren Shu* (Book for Living People) states: Pediatric chuangzhen resembles Shanghan (Cold Damage syndrome). Symptoms include headache, feverish body, cold feet, and rapid pulse. In cases of ambiguity, one should only prescribe Shengma Tang (Cimicifugae Decoction) to resolve the muscle layer, which also treats chuangzhen. It can be taken whether the eruption has appeared or not, but laxative or slippery-purging drugs must strictly be avoided; this is a major prohibition. Fever caused by Shanghan should indeed not be treated with purgation; fever caused by chuangzhen is at the exterior level, so using bowel-relaxing methods is even more contraindicated. Unlearned people in the world claim that at the initial stage, one should use drugs to induce defecation to vent the toxin, which is erroneous. (Zhang Yuansu, aka Haizang, said: Although this theory is correct when the pathogen is in the meridians, if heat is extreme causing cold feet, or if internal food injury causes abdominal heat with cold feet, one should use cold-natured medicines such as Xixin San (Heart-Washing Powder), Tiaowei Chengqi Tang (Regulate the Stomach and Order the Qi Decoction), or formulas for digesting food and opening the diaphragm. However, one must investigate whether the zang-fu organs are stagnant and examine the pulse condition. Xu Shuwei said: Upper heat and lower cold indicate food injury. At the initial fever of chuangzhen, hands and feet are also cold. Only Shanghan presents with whole-body heat, differing from cold feet. This is food injury, not cold injury; if it were cold injury, these methods would be inappropriate. Wang Defu treated it with Yinggan Wan (Induction Pill).) Once痘chuang (smallpox) has erupted, one must not use laxatives. If the eruption is complete and pus/blood are excessive, using relaxing/purging drugs again is also incorrect. (Zhang Yuansu said: This statement applies when the pathogen is in the meridians and the eruption is incomplete. If there is greasy stagnation in the abdomen and stomach, tenesmus resembling dysentery during defecation, and a slippery pulse indicating interior pathology, mild purgation is appropriate.) Generally speaking, chuangzhen should not be purged at either the beginning or the end. (Zhang Yuansu said: If there is stagnation in the zang-fu organs, one should not rigidly adhere to this rule.) If a child has cold ears, buttocks, and cough, and one readily uses purgative drugs, it will harm the patient. (Zhang Yuansu said: This refers to a harmonious interior with Shaoyang meridian heat in the channels; thus, Huadu Xijiao Tang (Toxin-Resolving Rhinoceros Horn Decoction) is used because qi is emerging outward. If qi has not fully emerged and the interior is not yet harmonized, seeking purgation may also be considered.) In treating rashes and smallpox, once diarrhea occurs, it allows pathogens to sink inward; one must never lightly use purgatives. Only if urination and defecation have been blocked for many days should one mildly promote their flow. Also, after痘chuang has crusted, if residual heat remains, manifesting as fever, sores, or abscesses, Sishun Yin (Four-Obedience Drink) should be administered orally. This not only eliminates residual toxins but also prevents other syndromes; repeated trials have verified its efficacy. I often see patients taking diaphoretic Ephedrae Herba (Mahuang) to sweat, causing all yang qi to escape to the surface, leading to visceral deficiency. Deficiency causes abdominal pain and spontaneous diarrhea, chills, or yin epilepsy, resulting in many deaths. When chuangzhen signs appear and spots are formed, if there are no exterior-interior, cold-heat, or deficiency-excess patterns, one should simply nurture the patient and allow nature to take its course. This not only prevents other syndromes but also facilitates regulation. Nowadays, people, upon seeing spots, disregard the severity of internal accumulation, fearing non-eruption, and use dispersing drugs like Zicao (Arnebiae Radix et Rhizoma), Chantui (Cicadae Periostracum), Renchi (Human Teeth), Houli (Monkey Pear), Jiuqu (Medicated Leaven), and Yuansui (Coriandri Fructus), trying everything. They do not know that when toxins encounter dispersing agents, potency increases tenfold; multiple sores merge into one, called "rotting," affecting the five viscera and seven orifices. Severe cases are incurable; mild cases result in hoarseness, eye diseases, skin ulceration, ear blockage, and nasal obstruction. Overuse of dispersing drugs often leads to deficiency collapse due to lack of interior yang support; this is the fault of reckless dispersion. Generally, once chuangzhen erupts, it relies on Stomach qi to transport and detoxify. To clear heat effectively: if heat is severe, promote urination. Since free urination guides Heart fire, heat decreases naturally even without cold medicines. If heat is mild, resolve the heat directly. If minor heat is not resolved, major heat will arise. Promoting urination for minor heat risks damaging qi, so one should only clear heat. For promoting urination, Daochi San (Guide Out Red Powder) is superior. For detoxification, Daimei Tang (Trionyx Decoction), Dusheng San (Single Victory Powder), Angong San (Palace-Anchoring Powder), Rusheng San (Like-Sage Powder), Zicao Tang (Arnebia Decoction), and Xijiao Yin (Rhinoceros Horn Drink) are selectable. Ignorant people merely state that chuangzhen is a heat syndrome and frequently administer cooling agents, worsening Stomach qi deficiency, causing chest fullness and abdominal distension, then using purgatives. Internal deficiency allows toxins to enter, killing quickly; this is the fault of improper purgation. If a child has nasal congestion and dry lips, it indicates latent heat. If the pulse is fine, complexion is sallow or cyanotic, skin is flaccid, and mouth foams green saliva, this is a syndrome caused by mistaken purgation. If there is no internal accumulated heat, how can one purge? In summary, treat heat with warm medicine administered coolly, avoiding excessive cold. Treat cold with warm medicine, avoiding excessive heat. Proceed gradually. Zhang Yuansu said: Generally, chuangzhen should not be purged at the start or end, lest movement cause complications. This refers to Shaoyang connecting to the exterior, requiring harmonization. First, stabilize the interior and detoxify, then mildly disperse. Detoxification requires anchoring the five viscera; Fangfeng Tang (Saposhnikoviae Decoction) serves this purpose. If stool is not constipated, mild dispersion is needed, selecting from Qian’s formulas. If stool is severely constipated, mild purgation is appropriate, using Danggui Wan (Angelica Pill) or Zaobian Baixiang Wan (Date-Transformed Baixiang Pill). At the onset of rash/smallpox, forcing simultaneous eruption overwhelms the child, causing other syndromes. "Start and end cannot be purged" means: Start refers to Upper Jiao, End refers to Lower Jiao. If vomiting and diarrhea have occurred, purging is inadvisable; stabilize the interior first. If no vomiting/diarrhea, give interior-stabilizing medicine 3-5 doses. If appetite is good but stool is constipated and interior is excess, promote drainage. If interior is deficient with diarrhea, use interior-stabilizing medicine 1-2 doses, finishing with a mild dispersing agent. Overall, interior-stabilizing herbs should outnumber exterior-dispersing ones. Constipation requires mild unblocking to prevent pathogen aggregation, allowing sequential eruption for easier tolerance. Warm body indicates favorable prognosis; cold body indicates unfavorable. Both cases benefit from frequent Fangfeng Tang administration. (See Fangfeng Tang formula in General Principles.) Zhang Yuansu said: If within five days, symptoms cannot distinguish between various diseases and rash, do not doubt it is rash; dispersion is necessary, but treat according to the specific pathogen. Dispersion does not hinder eruption. Forced dispersion yields countless complications. Predecessors said "start and end cannot be purged" because before rash appears on the surface, purging prevents pathogen expansion. This is a superficial pattern without interior involvement, hence prohibiting early purging. Late purging is prohibited because toxins are external, lacking internal roots, stool is loose, and there are no interior signs; purging causes qi to reverse and sink. Regarding warming and covering to prevent drafts: this applies when rash is un-erupted, or body is cool with aversion to cold, or weather is cold. If erupted, body is hot, and weather is warm, covering and preventing ventilation is unnecessary. Later generations rigidly adhered to these two sentences, fearing purging at start/end and maintaining warmth/ventilation prevention, ignoring seasonal and physiological variations, causing much error. Predecessors' words adapted to times; later generations failed to understand this adaptability, remaining rigid. Alas! "Start and end cannot be purged" assumes no initial internal stagnation. If interior signs or constipation exist, purging is mandatory. Warming/preventing draft applies to winter eruptions; summer eruptions do not require this. Treatment of rash/smallpox primarily relies on pulse diagnosis. Assess floating, middle, and deep pulses via light, medium, and heavy pressure to determine deficiency/excess and interior/exterior location, ensuring safety. [Wan Quan] Current smallpox practitioners claim "start and end cannot be sweated or purged," and followers agree that smallpox requires warming tonification, rejecting sweating and purging. This is the legacy of preferring tonification over attack. Little do they know that the essence of smallpox treatment is detoxification. Whether attacking or tonifying, the goal is resolving toxins. If qi and blood are harmonious, Ying-Wei circulates freely, and there is no exterior-interior pathogen, eruption will be complete, penetration thorough, and resolution timely. In such cases, neither sweating/purging nor warming tonification is needed. If external Wind-Cold constrains skin and closes pores, hindering eruption, sweating is indicated to harmonize Yin-Yang and circulate Ying-Wei, facilitating eruption and toxin release. Without sweating, toxins remain trapped internally, akin to "locking the door and inviting the thief." If high fever persists, irritability and thirst increase, delirium and coma occur, and urination/defecation are blocked, toxins are accumulated in the intestines/stomach, combing with grain qi. Urgent purging is required to unblock viscera and remove waste. Without purging, filth and toxins accumulate and simmer internally, risking "nurturing the tiger and leaving trouble." Thus, the principle states: Carefully observe the disease mechanism, assign responsibilities accordingly, seek causes for existing symptoms, investigate origins of absent ones, address excess and deficiency, understand Five Phases interactions, unblock qi and blood, ensure smooth flow, and achieve harmony. This is the meaning.