真如Suchness, the Unconditioned
無為法之終,百法 100 之究竟。「真謂真實,顯非虛妄」「如謂如常,表無變易」——「於一切位常如其性」(《成唯識論》卷九)為自體;前五無為(虛空 #95、擇滅 #96、非擇滅 #97、不動滅 #98、想受滅 #99)皆此真如於不同 aspect 之假施設名,第六真如自身亦非實常別法、「亦是假施設名」(CWS 卷二)——百法 5+1 結構之軸、識性之實性、唯識學之究竟歸趣。
漢zh · Xuanzang 譯
無為法之終,百法 100 之究竟。「真謂真實,顯非虛妄」「如謂如常,表無變易」——「於一切位常如其性」(《成唯識論》卷九)為自體;前五無為(虛空 #95、擇滅 #96、非擇滅 #97、不動滅 #98、想受滅 #99)皆此真如於不同面向之假施設名,第六真如自身亦非實常別法、「亦是假施設名」(《成唯識論》卷二)——百法 5+1 結構之軸、識性之實性、唯識學之究竟歸趣。
經
[共傳] 阿含/尼柯耶以「不生、不住、不異、不滅」之四相負面定義界定無為法之共通形式;於 tathatā 一字本身,南傳於 yathābhūta-ñāṇa-dassana(如實知見)與 dhammaṭṭhitatā / dhammaniyāmatā / idappaccayatā(《相應部》SN 12.20 Paccaya-sutta:「uppādā vā tathāgatānaṃ anuppādā vā tathāgatānaṃ ṭhitāva sā dhātu dhammaṭṭhitatā dhammaniyāmatā idappaccayatā」——諸如來出世若不出世,此界常住、為法住性、為法決定性、為此緣性)有功能對應,唯南傳 dhammaṭṭhitatā 為有為性質(idappaccayatā 即緣起之法則性,有為)、不立於 asaṃkhata 之列(→巴段詳)。tathāgata(如來)之名出自 tathā 同根:《增支部》AN 4.24 Kāḷaka-sutta「Tathāgato … tathāgato ti vuccati」,佛自說其名出於「如真如而來、如真如而去」。然名根共而範疇之異:南傳唯立 Nibbāna 為一無為,無為層之 tathatā-as-dharma 為唯識之擴位。⚠️ SN 12.20 與 AN 4.24 之巴利聖典協會(PTS)/VRI 字元精準待 Code 校準。
[大乘] 《解深密經》卷二〈一切法相品第四〉(T16n0676):
云何諸法圓成實相?謂一切法平等真如。
同卷〈無自性相品第五〉:
一切雜染不相應故,於常常時、於恒恒時,諸法法性安住故無為,由無為故無生無滅。
——〈一切法相品〉立圓成實相為「一切法平等真如」,〈無自性相品〉於勝義無自性性下深化此義:真如非修行始現、非聖位始有,乃於一切位常如其性之 dharmatā,「一切雜染不相應故」即雜染從未真正染著真如;由此 abidingness 推出無生無滅之 apophasis,與心經三重否定(不生不滅、不垢不淨、不增不減)共一印記之表詮。
此真如教義於諸大乘經典皆有對應論述:《心經》「諸法空相,不生不滅、不垢不淨、不增不減」以般若式表詮、《大般若經》以「真如、法界、法性、不虛妄性、不變異性、平等性、離生性、法定、法住、實際、虛空界、不思議界」並列展開異名、《楞伽經》卷一「五法(名/相/分別/正智/如如)三自性、八識、二無我、攝盡摩訶衍」以五法綱領收攝唯識體系、《華嚴經》以「一真法界」名理法界——餘者並陳,非欲堆疊大乘教證,乃證「真如非一宗一派之術語,乃諸大乘所共指」。本條 [大乘] 段以解深密卷二為主要錨(兩品分立並陳),餘大乘經之互參詳 S3-P13 § 4 真如異名考。
論
真如之論藏定義由《集論》之最完備結合起,五層展開:
《大乘阿毘達磨集論》(Abhidharma-samuccaya,[Abhidh-s 12–13],asaṃskṛta-dharma 段,三重結構之 framing + 7-name 異名 + 六重 kimupādāya 詞源;ASAMSKRTA_DEFINITIONS.md § VII 已字元-verified):
善法真如為何?無我性。彼〔真如〕亦稱為:空性、無相、真實際、勝義、法界。⋯⋯如善法真如,不善法真如、無記法真如亦應如是了知。
——《集論》立三種真如:善法真如、不善法真如、無記法真如。三者非三本體,乃同一真如於三 ethical-面相(善/不善/無記諸法)下之顯現;defining property 無我性(nairātmya)uniformly 適用三者。「不善法真如」一語為唯識心性論之反分別樞要——真如於諸不善法中亦平等而住,乃「心性本來清淨」(prakṛti-prabhāsvara-citta)擴展至倫理面之精準表述。百法將此三重收攝為一重真如(百法 #100 唯立「真如無為」一條)為便而失嚴之收攝;本本譯條此處明確揭示三重結構,以防一重讀法將真如誤縮為「唯善處可顯」者。
《顯揚聖教論》卷一(T31n1602, T31.0484c08–09,無著菩薩造)以單一 uniform 定義收三面相:
善、不善、無記法真如者,謂於善、不善、無記法中清淨境界性。
——「清淨境界性」(pariśuddha-viṣayatā)乃顯揚對《集論》七名之最簡統一揭示:tathatā 於三性框架下作為 cognition-object 之清淨性。顯揚同時於 T31.0484c10–13 為五止息(虛空/非擇滅/擇滅/不動/想受滅)配立三相——增益相(遍計所執自性)、增益所起相(依他起自性)、法性相(圓成實自性)——將五止息於三性軸上分解,並以圓成實自性等同於真如/法性。此一三性 framing 為顯揚之瑜伽行派-distinctive 推進。
《成唯識論》卷二(T31n1585, T31.0006c10–20,五無為總論末段,《成唯識論》之架構樞紐):
然契經說,有虛空等諸無為法,略有二種:一、依識變假施設有⋯⋯二、依法性,假施設有。謂空、無我所顯真如,有、無、俱非,心言路絕,與一切法非一、異等,是法真理,故名法性。離諸障礙,故名虛空;由簡擇力,滅諸雜染,究竟證會,故名擇滅;不由擇力,本性清淨,或緣闕所顯,故名非擇滅;苦、樂受滅,故名不動;想、受不行,名想受滅。此五皆依真如假立,真如亦是假施設名。遮撥為無,故說為有;遮執為有,故說為空;勿謂虛、幻,故說為實;理非妄倒,故名真如。不同餘宗離色、心等有實常法名曰真如。故諸無為非定實有。
——《成唯識論》卷二為本cluster之義理樞紐段落,承擔三項架構闡述:
①假立形態之雙分:①依識變假施設有(識所變似之相,paratantra 視角)/②依法性假施設有(真如之面相)。前者為 #70 法處所攝色等之假立形態(→#70),後者為 #95–#99 五無為之假立形態(→#95 已詳)。同一 prajñapti-sat 機制於兩本體層各自運作。
②5+1 結構之軸:「此五皆依真如假立」——五止息(虛空/擇滅/非擇滅/不動/想受滅)皆真如於不同脈絡下之面相命名:離諸障礙之面向曰虛空(→#95)、簡擇力滅雜染之面向曰擇滅(→#96)、本性清淨或緣闕所顯之面向曰非擇滅(→#97)、苦樂受滅之面向曰不動(→#98)、想受不行之面向曰想受滅(→#99)。前五無體獨立、依真如而立;唯真如自身作為法性,乃前五之本體基底。
③真如自身亦假施設名:「真如亦是假施設名」一句為破實體之徹底化——即令是統一者,亦不被立為心外實常之法。《成唯識論》之四重詞源(有/空/實/真如)為四重遮詮(quadruple 否定):
| 名 | 否定對象 | 立義 |
|---|---|---|
| 有 | 遮撥為無(破斷見) | 法性實存在 |
| 空 | 遮執為有(破常見) | 法性非固實 |
| 實 | 勿謂虛幻(破幻見) | 法性非虛妄 |
| 真如 | 理非妄倒(破倒見) | 法性真而如 |
四重遮詮即龍樹中觀四句之唯識變式——四方拒斥四種錯誤見地(斷/常/幻/倒),所剩「真如」一名為法性之自身指稱、亦為一假名。《成唯識論》此一分判同時拒斥 Sarvāstivāda 之「離色心有實常法名真如」(實有派)與 Madhyamaka 之絕對遮詮(純空派),確立瑜伽行派之中道立場:真如為假名實指之法性。
⚠ In Review · 表中 upādāya 句之 Skt 重構:四重遮詮之四名(有/空/實/真如)為《成唯識論》之漢譯闡發,非《集論》集論本身所立——其梵文對應未於現存梵本明示,依漢譯 morpheme-模式反推之 Skt long-forms 為reconstruction-tempting 而《集論》-unattested。本條四重表只列漢/否定對象/立義三欄,不列 Skt 欄;遵本譯_TEMPLATE.md 表格 Skt 欄審慎原則。
《成唯識論》卷九末(T31n1585, T31.0048b–c 區段,⚠️ Code 字元核校待精校卷九卷十邊界)為唯識之究竟命題:
此性即是唯識實性,謂唯識性略有二種:一者虛妄,謂遍計所執;二者真實,謂圓成實性,為簡虛妄說「實性」言。復有二性:一者世俗,謂依他起;二者勝義,謂圓成實,為簡世俗故說「實性」。
——雙重簡別:簡虛妄(非遍計所執)+ 簡世俗(非依他起)→「唯識實性」唯指圓成實性=真如。
此諸法勝義,亦即是真如,常如其性故,即唯識實性。
——七字偈為唯識學之最究竟命題:諸法勝義=真如;真如「常如其性」(即《集論》 ananyathā-bhāvatā「不異本然之性」之漢譯);真如即唯識實性——萬法唯識,識性即真如;真如非識外之物、乃識之真實本性。「即唯識實性」一句承擔百法 100 法之本體統合:百法所析之諸有為、諸假立、諸無為,其究竟歸趣即此一真如之識性。
《瑜伽師地論》卷七十四(T30n1579_卷074,攝決擇分中菩薩地之三):
圓成實自性於一切處皆一味故,圓成實自性無有安立品數差別。
圓成實自性,當言何所依止?答:當言無所安住、無所依止。
——前 99 法皆有所依:心所依心法、色法依識變、不相應行依色心分位、五無為依真如假施設;唯真如無所依、無所安住——非任何法之產物,乃諸法之實性。如水之溼性——非水外之物、亦非某種水之特徵、乃水之本然。「無所安住、無所依止」之本體自足性正是真如於 5+1 結構中得為統一者之根據。
按:論藏五層由淺入深、由分至合:《集論》之三重 + 7-name + 六重 kimupādāya (最完備闡述)→ 顯揚之「清淨境界性」+ 三性 framing (簡化統一)→ 《成唯識論》卷二之「五依真如假立」+ 四重遮詮(詞族樞紐)→ 《成唯識論》卷九之「即唯識實性」(究竟命題)→ 瑜伽師地論之「無所安住無所依止」(本體自足性)。《集論》之三重結構為心性論反分別之精準形式(不善法真如尤要),百法一重收攝便而失嚴;《成唯識論》卷二「此五皆依真如假立,真如亦是假施設名」一語為 5+1 架構軸、為前五無為之統合者角色之義理許可,且將破實體徹底化(連統一者亦假名);《成唯識論》卷九之「即唯識實性」承擔 100 法之本體統合終點——萬法唯識,識性真如。本條承擔前五無為(→#95 #96 #97 #98 #99)之統合者角色,並收攝百法 100 法之本體弧線(→#1 眼識為其首端)。
梵saṃskṛta
tathatā < tathā(如、如此、如是)+ -tā(陰性抽象後綴,「⋯之質」)——「如是之質」「如然」「thus-ness」。tathā 自身分解為 ta-(指示代詞詞幹「彼/此」)+ -thā(manner-副詞後綴「如、似」)。漢譯「真如」之「如」即此 tathā;玄奘「真」字則出自《成唯識論》四重之第三遮詮(勿謂虛幻,故說為實)所立義,「真」「如」並用乃漢譯之義理加固,非 Skt tathatā 本身之雙音節分釋。
⭐ tathā 之印歐祖語同源:指示代詞詞幹 ta- 出自印歐祖語 *so- / *to- ——印歐語系最穩定且最廣分布之指示代詞家族之一。同源詞貫穿諸印歐分支:
- 英文:the(定冠詞,最日常者)、that、this、there、then、thus、though
- 德文:der / die / das、dort(那裡)、dann(那時)
- 拉丁:iste, ille(指示);ita, sīc(如此、manner-adv)
- 希臘:定冠詞 ὁ, ἡ, τό;οὕτως(如此)
- 梵語自身:sa(彼)、sā(彼陰)、tat(彼中、即 tathā 之首音)
後綴 -thā 出自印歐祖語 *-tʰeh₂,於諸印歐語形成 manner-副詞之同類後綴。⭐⭐ 梵文 tathā 與英文 the 為直接同源——日常漢譯「真如」即「the-ness」「the abstract-noun-of being-just-so」。最日常之冠詞 the 與最究竟之佛教用語 tathatā 共一印歐祖語根、共一指(pointing-at-thus)之手勢:彼(ta-)+ 如(-thā)+ 之質(-tā)。此一同源關係為百法全 100 條中或不可思議之單一詞源呼應——本最究竟之概念於印歐語日常之中已自我顯現。
⭐ Tathāgata 同根:佛之名 tathāgata(如來)= tathā + gata(「已往者」)/āgata(「已來者」)——「如真如而往者」「如真如而來者」。佛之名即真如之名:證真如即成 tathāgata,tathāgata 之 gata 同樣印歐祖語 *gʷem-(「來、行」)所出,同源拉丁 venire 之 ven-。漢譯「如來/如去」並用乃本義之雙釋,非 Skt 一詞之雙意。
⭐⭐ 《集論》之 kimupādāya tathatā tathatocyate / ananyathā-bhāvatām upādāya 一句為自指式詞源:tathatā 之所以稱為 tathatā,乃以「不異本然之性」(ananyathā-bhāvatā)之故;此「不異本然」一語自身又是 tathā 之否定式重述(an-anyathā =「非他然」=「如本然」)。真如之名指稱真如自身之 thus-ness——其名為其義之自我指稱。
asaṃskṛta < a- + saṃ- + √kṛ + -ta (「不被造作者」),詞源同 #95 已詳。√kṛ 之印歐祖語重構 *kʷer- 有爭議,保留 ⚠️ 不上推(→#95 梵段)。
《阿毘達磨集論》([Abhidh-s 12–13],asaṃskṛta-dharma 段,三重 + 7-name + 六重 kimupādāya):
kuśala-dharma-tathatā katamā / nairātmyam / sā punar ucyate śūnyatā animittaṃ bhūtakoṭiḥ paramārtho dharmadhātuś ca // ... yathā kuśala-dharma-tathatā tathā akuśala-dharma-tathatā avyākṛta-dharma-tathatā ca jñeyā //
七名一義(七面一真如)。《集論》為每名各立 kimupādāya(「依何義而稱」)之詞源:
| 名 | Skt | kimupādāya 子句 | 揭示之面相 |
|---|---|---|---|
| 真如 | tathatā | ananyathā-bhāvatā | 不異本然之性(自性無變異) |
| 無我性 | nairātmya | dvividha-ātma-viprayukta | 離二種我(人我 + 法我) |
| 空性 | śūnyatā | sarva-saṃkleśa-apracāra | 一切雜染不行 |
| 無相 | animitta | sarva-nimitta-upaśama | 一切相皆寂止 |
| 真實際 | bhūtakoṭi | aviparyāsa-ālambana | 不顛倒所緣(為正智所緣) |
| 勝義 | paramārtha | paramārtha-jñāna-gocara-sthāna | 勝義智之所行處所 |
| 法界 | dharmadhātu | buddha-dharma-nimitta-āśraya | 一切聖法所依之因 |
⭐⭐⭐ 七名非單純同義替換、非同義詞 set——乃七種揭示真如之視角,每名背後一條 upādāya(依何義)句揭示一面:自性無變、離二我、離雜染、離相、為正智所緣、為聖智之境、為聖法之因。MahāyānaSūtrālaṃkāra IX.45 + Madhyāntavibhāga III.12 重複《集論》此七名表(小幅變異);《集論》為此列之位置典範。
8→6 之架構攝合:《集論》 [Abhidh-s 12] 立八無為(三層 ethical-面相真如 + 五止息),以三層真如領首;顯揚卷一重排為五止息先、三層真如殿後;《大乘百法明門論》(T31n1614, T31.0855c17–19)合併三層為一統真如,立六:
第五無為法者,略有六種:一虛空無為、二擇滅無為、三非擇滅無為、四不動滅無為、五想受滅無為、六真如無為。
此 8→6 之合併由《成唯識論》卷二「此五皆依真如假立」一句架構許可:既然前五皆是真如於不同面相之 designation-naming,真如自身即作為統合者-of-五,無須再以倫理面三 sub-classify。3→1 之收攝為便而失嚴——便者,一重真如之統合者角色更顯豁;失嚴者,「不善法真如」之反分別點被隱於統合者角色背後,讀者若不察《集論》原始三重結構,易將真如誤縮為「唯善處可顯」之上層分位,違瑜伽行派心性本淨擴及 akuśala 之原立場。
按:本梵段 kimupādāya 表為《集論》對瑜伽行派論「無為之語言哲學」之精準貢獻——七名各立詞源,揭示「指稱無為應藉多重視角而非單義術語」之語言哲學。《成唯識論》卷二之四重漢譯遮詮(漢段 § 論已陳)與《集論》六重 kimupādāya 互補:前者為四重否定之認識論進路(破四見以顯一名),後者為 upādāya 詞源之義理進路(依七義以立七名)。《集論》之六重為梵本詞源,《成唯識論》之四重為漢譯詞源——兩者俱無《集論》漢譯重構之必要,亦無《成唯識論》梵本反推之必要。3→1 之收攝由《成唯識論》卷二一語架構許可(→#95 已預示統合者角色,本條承擔全闡述);三重反分別之點由本梵段明確表述(不善法真如),以防一重讀法之義理攤平。
巴pāḷi
於上座部阿毘達磨,真如不立為 dharma-as-asaṃkhata。南傳唯立 Nibbāna 為單一 asaṃkhata-dhamma(Vism XVI;《Abhidhammattha-saṅgaha》VI.34),無「真如」於勝義法(paramattha-dhamma)名單。Pāli tathatā 一字本身極少作名詞出現於早期阿毘達磨;其功能性對應散於諸有為-but-stable 範疇。此乃百法全 100 條中最深之範疇之架構南北分歧——同 #95 闡明之 6-vs-1 範疇分歧,至本條(詞族-and-目錄之收攝者)達其終局形態:Yogācāra-pluralism-with-unifier 對 Theravāda-monism。
Theravāda 對應論
南傳於真如所對應之諸範疇分散於 conditioned 層之四類:
①dhammaṭṭhitatā / dhammaniyāmatā / idappaccayatā(法住性/法決定性/此緣性,Saṃyutta-nikāya SN 12.20 Paccaya-sutta)——最近之功能性對應。「諸如來出世若不出世,此界常住、為法住性、為法決定性、為此緣性」(uppādā vā tathāgatānaṃ anuppādā vā tathāgatānaṃ ṭhitāva sā dhātu dhammaṭṭhitatā dhammaniyāmatā idappaccayatā)——緣起之法則性為法住性,於諸如來出世與否之軸上不變,最似瑜伽行派「真如於一切位常如其性」之 abiding-suchness。⚠️ 唯 dhammaṭṭhitatā 為有為性質(idappaccayatā 即緣起之法則性,有為),非 asaṃkhata;其於有為層之穩定性貌似 tathatā 之 abidingness,但本體論狀態不同。SN 12.20 逐字 Pāli 待 SuttaCentral/巴利聖典協會(PTS)字元精準校準。
②Sabhāva(自性、intrinsic nature)——南傳作為勝義法(paramattha-dhamma)之屬性使用,非別立 dhamma;偶見後期論藏 Atthasālinī 等以「sabhāva-lakkhaṇa」描述 dhamma 之所以為其自身者,但仍為有為法之屬性,未升至 asaṃkhata 層。對應 dharmadhātu 為 weakness-of-fit。
③Yathābhūta-ñāṇa-dassana(如實知見)——「依事物本然之相而知見」之認識論技術名,護教者偶以對譯瑜伽行派真如之認知-side (即《集論》 paramārtha-jñāna-gocara-sthāna 子句)。然此為認識(ñāṇa-dassana),非所識之對象(tathatā as object),僅證悟面相對應,非本體對應。
④Tathāgata 名號(《增支部》AN 4.24 Kāḷaka-sutta:Tathāgato … tathāgato ti vuccati)——佛之自釋其名出於「如真如而來」「如真如而去」之 tathā 同根。此處南傳 tathā(如)詞與唯識 tathatā(如性)共印歐祖語 *so-/to- 根、共「指 thus」之語法手勢,但唯識將其升格為 noun-as-asaṃskṛta 別立 dharma-位置;南傳保留為副詞 / 名號詞幹,不別立 dhamma。同一根詞,二異本體處理。⚠️ AN 4.24 逐字 Pāli 待巴利聖典協會(PTS) Aṅguttara II.24 字元核校。
四類俱為有為:法住性為緣起之法則性(有為)、自性為 dhamma 之屬性(dhamma 自身有為)、如實知見為認識作用(mental event)、Tathāgata 為人格名號(佛作人格為有為五蘊支線)。南傳於 asaṃkhata 層唯立 Nibbāna 一夫,其餘皆有為。
唯識則於 asaṃskṛta 層立六(百法 1 真如統合者 + 5 cessations),以 prajñapti-sat 機制處理其多元性:五止息皆依真如假立,真如自身亦為假施設名(《成唯識論》卷二)。破實體由瑜伽行派之多元立位以 prajñapti 機制統合,由南傳之嚴格一元論以 paññatti / saṅkhata 之拒位機制處理——同破實體之立場,藉異路徑 闡明。
按:南北之 6-對-1 範疇之架構分歧為百法全 100 條中最深之跨傳承分歧——大於 #60–#70 色法之 28-對-11 分歧(→#60)、大於 #71–#94 不相應行之 24-對-0 分歧(→#71)、大於 #95–#99 五止息層之分歧(→#95 已闡明詞族首條形態)。本條為詞族之收攝者與目錄之收攝者,承擔此分歧之終局闡述:兩系皆破實體論派,但瑜伽行派取多元含統合(六無為皆假立、唯真如為統合者,統合者自身亦假名),南傳取嚴格一元論(一 Nibbāna asaṃkhata,餘皆有為或 paññatti)。判攝之異乃架構立場之系統差別,所指破實體立場同一。讀者宜以「兩系於同一問題之兩條有效解答」讀本分歧,勿以勝負分判。
漢綜述zh-synthesis
「真如」之梵文 tathatā 為動詞性與指示性合成——tathā(如、如此、如是)+ -tā(陰性抽象後綴,「⋯之質」)——直譯「如是之質」「如然」(thus-ness)。tathā 自身分解為 ta-(指示代詞詞幹「彼/此」)+ -thā(manner-副詞後綴,「如、似」之構詞,出自印歐祖語 *-tʰeh₂)。漢譯「真如」之「如」即此 tathā 之直譯;「真」則出自《成唯識論》卷二四重遮詮之「實」(勿謂虛幻,故說為實),漢譯雙字為義理加固,非梵文雙音節之分釋。⭐⭐ 指示代詞詞幹 ta- 出自印歐祖語 *so-/*to-——印歐語系最穩定且最廣分布之指示代詞家族之一。同源詞貫穿諸語:英文 the(定冠詞,最日常者)、that、this、there、then、thus、though;德文 der/die/das、dort(那裡)、dann(那時);拉丁 iste、ille(指示)、ita、sīc(如此);希臘定冠詞 ὁ、ἡ、τό 與 οὕτως(如此);梵語自身之 sa(彼)、sā(彼陰)、tat(彼中,即 tathā 之首音)。⭐⭐⭐ 梵文 tathā 與英文 the 為直接同源——最日常之冠詞與最究竟之佛教用語共一印歐祖語根、共一「指 thus」之語法手勢:彼(ta-)+ 如(-thā)+ 之質(-tā);此一同源關係為百法全 100 條中或為不可思議之單一詞源呼應,本最究竟之概念於印歐語日常之中已自我顯現。佛之名 tathāgata(如來)= tathā + gata(已往者,出自印歐祖語 *gʷem- 「來、行」,同源拉丁 venire)/āgata(已來者)——「如真如而往者」「如真如而來者」;佛之名即真如之名,證真如即成 tathāgata,名與證共此一根。《集論》自指式詞源「kimupādāya tathatā tathatocyate / ananyathā-bhāvatām upādāya」(真如以「不異本然之性」之故而稱 tathatā)為此根之自我指稱閉環:an-anyathā 即 tathā 之否定式重述(「非他然」即「如本然」)——其名為其義之自我指稱。
真如於唯識體系內由《集論》之三層架構展開:①三層 ethical-aspect framing——善法真如(kuśala-dharma-tathatā)、不善法真如(akuśala-dharma-tathatā)、無記法真如(avyākṛta-dharma-tathatā)非三本體,乃同一真如於三倫理面向下之顯現;界定屬性 無我性(nairātmya)均適用三者。②七名異名表——tathatā / nairātmya / śūnyatā / animitta / bhūtakoṭi / paramārtha / dharmadhātu。③六重 kimupādāya 詞源——每名各立「依何義而稱」之子句,揭示真如之七重視角:
| 名 | kimupādāya 子句 | 揭示之面相 |
|---|---|---|
| 真如 | ananyathā-bhāvatā | 不異本然之性(自性無變異) |
| 無我性 | dvividha-ātma-viprayukta | 離二種我(人我 + 法我) |
| 空性 | sarva-saṃkleśa-apracāra | 一切雜染不行 |
| 無相 | sarva-nimitta-upaśama | 一切相皆寂止 |
| 真實際 | aviparyāsa-ālambana | 不顛倒所緣(為正智所緣) |
| 勝義 | paramārtha-jñāna-gocara-sthāna | 勝義智之所行處所 |
| 法界 | buddha-dharma-nimitta-āśraya | 一切聖法所依之因 |
七名非同義替換之組,乃七種揭示真如之視角,每名背後一條 upādāya 句揭示一面:自性無變、離二我、離雜染、離相、為正智所緣、為聖智之境、為聖法之因。百法將《集論》三層收攝為一重真如(百法 #100 唯立「真如無為」一條),便而失嚴:便者統合者角色更顯豁,失嚴者不善法真如一語所載之心性本淨擴及不善法之 反分別點隱於背後——讀者若不察《集論》原始三層,易將真如誤縮為「唯善處可顯」者,違瑜伽行派 prakṛti-prabhāsvara-citta(心性本來清淨)之原立場。《成唯識論》卷二之四重漢譯遮詮為梵《集論》六重 kimupādāya 之漢譯詞族變式:「遮撥為無,故說為有;遮執為有,故說為空;勿謂虛、幻,故說為實;理非妄倒,故名真如」——四重否定即四方拒斥四種錯誤見地(破斷見、破常見、破幻見、破倒見),所剩「真如」一名為法性之自身指稱、亦為一假名,同時拒 Sarvāstivāda「離色心有實常法名真如」之實有派與 Madhyamaka 之絕對遮詮,立瑜伽行派之中道。「此五皆依真如假立,真如亦是假施設名」一語為百法 5+1 結構之軸:前五無為(虛空 →#95、擇滅 →#96、非擇滅 →#97、不動滅 →#98、想受滅 →#99)皆真如於不同脈絡之假施設命名,唯真如自身為法性、為前五之本體基底;而即令統合者亦不被立為心外實常之法——破實體徹底化。《成唯識論》卷九之究竟偈頌「此諸法勝義,亦即是真如,常如其性故,即唯識實性」承擔百法 100 法之本體統合終點:諸法勝義即真如;真如「常如其性」(即《集論》ananyathā-bhāvatā 之漢譯);真如即唯識實性。萬法唯識,識性真如;真如非識外之物,乃識之真實本性——此為百法首條 →#1 眼識(識之發端)至本條(識性之究竟)所穿越之 識→智→境 弧線之終點。
此條承擔百法全 100 條中最深之範疇-架構分歧——大於 #60–#70 色法之 28-對-11 分歧、大於 #71–#94 不相應行之 24-對-0 分歧、亦大於 #95–#99 五止息層所闡明之 6-對-1 無為計數分歧。本條為詞族與目錄之雙重收攝者,承擔此分歧之終局闡述。瑜伽行派立 6 無為(《集論》原立 8、百法收攝為 6),以 prajñapti-sat 機制處理其多元性:五止息皆依真如假立,真如自身亦為假施設名(《成唯識論》卷二);上座部於 asaṃkhata 層唯立 Nibbāna 一夫,其餘皆有為或 paññatti(《清淨道論》XVI;《攝阿毘達磨義論》VI.34)。Yogācāra-pluralism-with-unifier 對 Theravāda-monism——兩系架構於同一破實體承諾下之兩條有效路徑。南傳於真如所對應之諸範疇分散於有為層之四類:①dhammaṭṭhitatā / dhammaniyāmatā / idappaccayatā(法住性/法決定性/此緣性,《相應部》SN 12.20《緣經》)為最近之功能對應,「諸如來出世若不出世,此界常住、為法住性、為法決定性」之 常住性最似真如「於一切位常如其性」;唯 dhammaṭṭhitatā 為緣起之法則性,本體論狀態仍為有為。②sabhāva(自性)為勝義法之屬性而非別立 dhamma,弱對應於 dharmadhātu。③yathābhūta-ñāṇa-dassana(如實知見)為認識作用,僅證悟面相對應,非所識對象之本體對應。④Tathāgata 名號(《增支部》AN 4.24《Kāḷaka 經》「Tathāgato … tathāgato ti vuccati」)與唯識 tathatā 共印歐祖語 *so-/*to- 根、共「指 thus」之語法手勢,但唯識將其升格為 noun-as-asaṃskṛta 別立 dharma-位置;南傳保留為副詞/名號詞幹,不別立 dhamma——同一根詞,二異本體判攝。四類俱為有為。範疇-架構之分歧至此達其終局形態:兩系皆破實體論派,但瑜伽行派取多元含統合(六無為皆假立、唯真如為統合者,統合者自身亦假名),南傳取嚴格一元(一 Nibbāna 為 asaṃkhata,餘皆有為或 paññatti)。判攝之異乃架構立場之系統差別,所指破實體立場同一——讀者宜以「兩系於同一問題之兩條有效解答」讀此分歧,勿以勝負分判。
真如為目錄中核心之誤識對象:易命名而難認識。禪定之擴展、毗鉢舍那之清明、深定中無執取之感受層之缺席——三者皆易被誤讀為真如之證得,但 三者俱為有為心之現象、為 有為心之狀態,非真如自身。對治之關鍵在《集論》三層架構之 akuśala-dharma-tathatā 一語——若一重收攝去之,學者易默想「真如唯於善心境見」而失唯識本意:真如於 kāmacchanda(欲貪)之中與於 upekṣā(捨)之中同樣 just-as 在場,因真如非心之 感受質,乃心於 dharmatā 視角下之本然。心性本淨之教(prakṛti-prabhāsvara-citta)非謂佛果無煩惱之生起,乃謂煩惱起時、其生起之底層仍為一不被染著之真如——煩惱於真如上不能立足。蒲團上之真如非定境之 平順、非觀之 clarity;乃定之 粗礪 與 平順、觀之 渾濁 與 clear 所共依之「於一切位常如其性」者。《成唯識論》卷九之七字偈「常如其性故,即唯識實性」即此修持保護之簡明形:真如不變於諸有為瞬間,故不能由特定之有為相認取。然此非謂真如不可證——百法 100 法之終點即在證真如;證真如即成 tathāgata(→#1 眼識起,至 →#8 阿賴耶之圓滿轉依為大圓鏡智,所緣之遍滿即真如)。識→智→境之弧線於本條閉合:心法之首條為識之發端,本條為識之究竟——非識外另立一物,乃識自體之真如性顯現。
漢譯「真如」為玄奘所選——「真」取四重遮詮之「實」(勿謂虛幻)、「如」取 tathā 之核心「如是」義;二字並用為義理加固,非梵文雙音節之分釋。異名於漢譯亦豐:法性(dharmatā)、法界(dharmadhātu)、實際(bhūtakoṭi)、勝義(paramārtha)、空性(śūnyatā)、無相(animitta)、無我性(nairātmya)、圓成實性(pariniṣpanna-svabhāva)——七名同實,每名揭一面,已詳於 §義理。英譯傳統有 Suchness 與 Thusness 兩支:Thusness 形態上最近(thus ↔ tathā;-ness ↔ -tā),亦保留 the 同根之語感;Suchness 已立 Buddhist 學界之譯界慣用,但「such」之詞源(古英文 swilc < 印歐祖語 *swo-līkos)出自 *swe- 「自、本」之指示根,與 tathā 之 *so-/*to- 根不同——semantic 同而 etymology 異,與德文 Soheit(海德格爾及德語佛學界用)為同類 false-cognate-but-semantic-equivalent 模式。本譯於英文採 doublet「Suchness, the Unconditioned」——取 Suchness 之譯界慣用 + 「the Unconditioned」之範疇標識,同時於 the 之選用上回應 tathā / the 之印歐祖語同源——使英文讀者於最日常之冠詞前自接此最究竟之概念。收尾架構觀察:印歐祖語 *so-/*to- 之指示家族於英文給出 the / that / this / there / then / thus,於梵文給出 sa / tat / tathā / tathatā / tathāgata——同一「指 thus」之語法手勢,於兩語族之最日常處與最究竟處俱顯。漢字無此構詞層之同源呼應(「真如」二字與 tathatā 無漢字範圍之 etymological 同根),唯梵文形態學見證此架構:自 #19 信 śrad-dhā「以心置」始(→#19,√dhā 之首條派生),經 →#17 定 sam-ā-dhā「合一安置」(√dhā 別境之收尾),中經諸心所、心法、色法、不相應行、五止息之展開,至本條 tathatā「如是之質」終——百法之詞源閉環非偶然之尾首呼應,乃印歐祖語「指、置、然」三動詞於唯識體系之系統性派生。
真如 ——此諸法勝義,亦即是真如,常如其性故,即唯識實性。
英綜述en-synthesis
Sanskrit tathatā compounds tathā "thus, in such a way" + -tā (feminine abstract suffix forming abstract nouns). The result is "thusness" or "suchness" — the abstract-noun-of being-just-so. Tathā itself decomposes into ta- (the demonstrative pronominal stem "this/that") + -thā (manner-adverb suffix "in such a way"). The PIE root for the demonstrative stem is *so- / *to- — one of the most stably attested Indo-European demonstrative families. The cognate set spans the family: English the (the most ordinary article in the language), that, this, there, then, thus, though; German der / die / das, dort, dann; Latin iste, ille, ita, sīc; Greek ὁ, ἡ, τό, οὕτως; Sanskrit's own sa, sā, tat. The adverbial suffix -thā derives from PIE *-tʰeh₂, paralleling Greek πῶς / οὕτως. ⭐⭐ The English definite article the and the Sanskrit tathatā are direct cognates — descended from the same PIE demonstrative gesture of pointing-at-thus. Perhaps the most striking single etymological connection in the entire 100-list: the most ordinary article in English and the most ultimate Buddhist concept share one Indo-European root and one underlying gesture. The gesture is pointing-at-thus; the article fixes a referent as "the (just-this) one"; tathatā names the abstract reality of just-this-ness as dharmatā. Both encode the same root operation: designation of that-which-is-just-so. The Buddha's title tathāgata descends from the same tathā root + either gata "gone" or āgata "come" (PIE *gʷem- "to go, come" — Latin venire). The doctrinal payoff is precise: to realize tathatā is to become tathāgata — the title and the unconditioned share a single root because they name a single relation, that of being-thus or coming-thus. English "thusness" and "suchness" are both reasonable renderings; "thusness" is morphologically closer (thus ↔ tathā; -ness ↔ -tā), while "suchness" carries the established Buddhist-studies register. Asaṅga's self-referential etymology — tathatā is called tathatā because of ananyathā-bhāvatā "not-otherwise-being-ness" — closes the etymological loop: the name of suchness is itself a thus-pointing at suchness's not-being-otherwise.
Tathatā is the sixth and final unconditioned dharma (asaṃskṛta) in the Yogācāra 100-list, and the 100th overall — the catalog's culminating term. Asaṅga's Abhidharma-samuccaya presents it with the densest single passage in the asaṃskṛta block: a 3-fold structural framing (kuśala-dharma-tathatā / akuśala-dharma-tathatā / avyākṛta-dharma-tathatā — the same suchness viewed under wholesome, unwholesome, and indeterminate ethical aspects of dharmas), a 7-name alternative-naming list (tathatā / nairātmya / śūnyatā / animitta / bhūtakoṭi / paramārtha / dharmadhātu), and a 6-fold kimupādāya etymology assigning each name a by-what-reason clause. The 7 names are not synonyms-by-substitution; each upādāya clause reveals a different functional or metaphysical aspect of one tathatā. The doctrinal payoff is precise: there is no single way to name the unconditioned, because no single lens captures it — tathatā names self-identity (ananyathā-bhāva); nairātmya names dissociation from self-projection (dvividha-ātma-viprayukta); śūnyatā names the non-functioning of all defilements (sarva-saṃkleśa-apracāra); animitta names the pacification of all signs (sarva-nimitta-upaśama); bhūtakoṭi names the cognitive anchor for unmistaken cognition (aviparyāsa-ālambana); paramārtha names the locus of supreme cognition (paramārtha-jñāna-gocara-sthāna); dharmadhātu names the causal ground of all noble dharmas (buddha-dharma-nimitta-āśraya). Seven aspects, one reality. The Cheng Weishi Lun fascicle 2 supplies the architectural hinge that licenses the cluster's structure: 「此五皆依真如假立,真如亦是假施設名」 — the five preceding cessations (#95–#99) are all designations dependent on tathatā, and tathatā itself is also a designation-name. Anti-realism extends top to bottom: even the unifier is not a substance-existent unifier, only a designation imputed on dharmatā. CWS supplies its own 4-fold quadruple-negation etymology (tathatā-as-existence rebuts nihilism; tathatā-as-emptiness rebuts substantialism; tathatā-as-real rebuts illusionism; tathatā-as-thus rebuts cognitive inversion) — Yogācāra's middle path between Sarvāstivāda's tathatā-as-real-eternal-substance and Madhyamaka's tathatā-as-purely-empty. Two architectural moves matter at the cluster's culmination. First, the 8-versus-6 collapse from Asg to Daśa-bhūmi-mukha (《大乘百法明門論》): Asg's three ethical-aspect tathatās (善 / 不善 / 無記) collapse into a single tathatā as the unifier of the five preceding cessations. The collapse is convenient — the unifier role is more visible at 1-fold — but loses the akuśala-dharma-tathatā anti-discrimination point. The natural luminosity of mind (prakṛti-prabhāsvara-citta) holds even within unwholesome dharmas; tathatā is not the ethical-positive-only ground. Without the 3-fold structure made explicit, students may default to thinking tathatā only "shows up" in kuśala contexts. The recovery at this entry surfaces the 3-fold framing precisely so that 1-fold reading does not flatten the doctrine. Second, the 识→智→境 (consciousness → wisdom → object) closing arc: the catalog opens at #1 cakṣur-vijñāna (eye-consciousness — the first moment of perception) and closes at #100 tathatā (the unconditioned object of mahā-ādarśa-jñāna in its full pervasiveness). The transformation that the vijñāna of #1 undergoes when its operations are completely seen is jñāna (智) — and the gocara (境) of that jñāna at full development is tathatā. The 100-list traces a single structural arc from perception's first moment to its ultimate unconditioned object; #1 → #100 is the vijñāna → jñāna → tathatā (識 → 智 → 境) arc compressed into the catalog's structure (cf. CWS fascicle 10's 4-jñāna framework, surfaced at #8 阿賴耶識 v1).
The relationship to Theravāda at this entry is the deepest categorial-architectural divergence in baifa — larger than the 28-versus-11 rūpa divergence at the 色法 cluster, larger than the 24-versus-0 不相應行 divergence at the prajñapti cluster, larger even than the 6-versus-1 unconditioned-count divergence already articulated at #95. Yogācāra has six (or Asaṅga's eight) unconditioneds with tathatā as unifier; Theravāda has one (Nibbāna alone, per Visuddhimagga XVI and Abhidhammattha-saṅgaha VI.34). Both traditions agree on the underlying anti-realist commitment — neither treats supposedly-unconditioned phenomena as substances — but they differ on whether multi-aspect articulation is a virtue or a fault at the unconditioned level. Yogācāra-pluralism-with-unifier sees value in distinguishing the un-obstructed-ness aspect (ākāśa #95) from the analytical-cessation aspect (pratisaṃkhyā-nirodha #96) from the non-arising aspect (apratisaṃkhyā-nirodha #97) and so on, with tathatā as the dharmatā on which all five aspect-namings rest. Theravāda-monism sees value in not distinguishing — the only asaṃkhata is Nibbāna; everything that looks unconditioned but is not Nibbāna is either paññatti (concept-only, e.g. ākāsa-paññatti) or a conditioned phenomenon whose stability is structural rather than ontological (e.g. dhammaṭṭhitatā is idappaccayatā — dependent co-arising's lawfulness, conditioned). The two architectures encode different choices about whether classificatory parsimony (Theravāda) or analytical articulation (Yogācāra) is the higher virtue at the doctrinal apex. Both are coherent; both encode the same anti-realism. The functional parallels can be mapped — dhammaṭṭhitatā approximates tathatā's abiding-suchness aspect (the same SN 12.20 phrasing about "whether tathāgatas arise or not, this principle stands" maps onto Asaṅga's ananyathā-bhāvatā); yathābhūta-ñāṇa-dassana approximates the paramārtha-jñāna-gocara-sthāna clause (the cognitive-anchor aspect); sabhāva approximates the dharmadhātu aspect weakly. But all four Theravāda functional analogs are conditioned; the Yogācāra category they parallel is unconditioned. The same Pāli/Sanskrit tathā root yields tathāgata in both traditions (the Buddha's epithet) — but Yogācāra uniquely promotes its abstract noun tathatā to asaṃskṛta-dharma status. Same root, opposite ontological-status verdicts. The opposite verdicts trace to the architectural commitment: where Yogācāra distributes the anti-realist work across multiple unconditioned designations with tathatā as their unifier, Theravāda concentrates it at Nibbāna alone with all else conditioned-or-concept. Reading the divergence as valid alternative architectures for the same anti-realist insight — not as one side getting it right and the other side getting it wrong — is the cluster's closing pedagogical lesson.
Tathatā is the catalog's most dangerous misidentification target precisely because it is the easiest to name and the hardest to recognize. The expansiveness of a settled meditation, the clarity of a moment of vipassanā, the felt absence of grasping during deep samādhi — each can be misread as tathatā-realization, but each is a phenomenology, a state of the conditioned mind, not the unconditioned suchness on which all states (open and clamorous, sublime and afflicted) rest. The practical anchor against this misreading is precisely Asaṅga's 3-fold structural framing. Akuśala-dharma-tathatā — the suchness of unwholesome dharmas — survives the 1-fold collapse only if a reader knows to look for it. Tathatā is just-as present in a moment of kāmacchanda (sense-desire) as in a moment of upekṣā (equanimity), because tathatā is what the moment is under the dharmatā lens, not what the moment feels like under the experiential lens. The 修行 implication: realizing tathatā is not arriving at a special expansive state but recognizing the just-as character of every state, including the afflicted ones; the prakṛti-prabhāsvara-citta doctrine (mind's natural luminosity) does not say afflictions are absent from a Buddha's mind-stream — it says afflictions, when they arise, do so against an underlying suchness that they cannot defile. Tathatā on the cushion is not the smoothness of practice; it is the underlying that-which-is-thus of practice's roughness as much as its smoothness. The CWS 卷九 verse 「此諸法勝義,亦即是真如,常如其性故,即唯識實性」 packs this entire pedagogy into seven characters: the ultimate of all dharmas is just suchness, because it abides as it is, hence it is the very-real-nature of consciousness-only. The "abides as it is" clause (常如其性故) is the protection — tathatā does not vary across conditioned moments; it is what they all share at the level of dharmatā. The catalog's 100-entry journey ends here because nothing more can be said: every other dharma in the 99 preceding entries names a feature of conditioned experience or a designation upon it; tathatā names what every conditioned experience is, when seen as dharmatā. The 識 → 智 → 境 arc closes when the vijñāna of #1 — the first moment of eye-consciousness, condition-grasping at form — is seen completely, transformed into jñāna, and finds tathatā as its full-pervasive object. To realize tathatā is to become tathāgata; the title and the realization are one root, tathā-pointing-at-thus.
Suchness, the Unconditioned (tathatā) — that-which-is-thus, the dharmatā of all dharmas in all positions and in all times. Neither born nor perishing, neither defiled nor purified, neither increasing nor decreasing; abiding as it is, the very-real-nature of consciousness-only (vijñapti-mātratā). One reality with seven upādāya-names — self-identity, no-selfness, emptiness, signlessness, reality-anchor, ultimate, dharma-realm — each a different lens on the same unconditioned. The unifier of the five preceding designations (#95–#99); designation itself, not substance; the closing term of the 100-list. To realize this is to become tathāgata: title and realization, one root.
譯translator's note
譯者按: 結構分析詳 S3-P13、S3-P14(轉識成智,後出)。本條承擔無為詞族之統合者角色(→#95 已預示,本條闡明全幅 8→6 之架構攝合 + 三重 akuśala-dharma-tathatā 反分別之點),並收攝百法 100 法之本體弧線——識(#1 眼識)→ 智(→#8 阿賴耶之大圓鏡智四智框架)→ 境(本條真如為大圓鏡智之遍滿所緣)。tathatā 之 tathā 同根於英文 the(印歐祖語 *so-/to-)與佛之名 tathāgata——此一「如是」之指示(pointing-at-thus)於語法最謙處與義理究竟處俱顯,乃百法之詞源閉環。
百法明門論譯注完工感言:
從 #1 眼識(cakṣur-vijñāna)起,至 #100 真如(tathatā)終,百法 100 法之譯注完成。穿越眼耳鼻舌身意之心法 8、穿越遍行至散亂之心所 51、穿越眼根至法處所攝色之色法 11、穿越得至不和合之不相應行 24、穿越虛空至想受滅之無為 5——最終歸於真如。
萬法唯識,識性真如——此非一句總結之口號,乃百法 100 法逐條展開後於本體論上收攝之必然歸趣。修行之全貌於百法中展開,百法之究竟於真如中歸寂。釋慧鏡謹以此譯注獻於有緣讀者——願以此分析,助開唯識之門;願以此究竟,明真如之性。
詳見指月第三部 S3-P13、S3-P14(轉識成智,後出),並對讀 #1 眼識(目錄首條)與 #8 阿賴耶識(四智轉化架構,大圓鏡智之所緣即真如於遍滿圓融處)。