四無礙解

catuḥpratisaṃvid

法义辞乐说四种无碍智慧。AI-generated

Type AttainmentDifficulty IntermediateTruth-level span outside the four-fold two-truths frameworkInitial AI estimate · evolves with use

A Contemporary ReadingAI-generated

Here is a deep-dive interpretation of the Buddhist concept Four Unhindered Intellects (*Pratisambhidā*, 四無礙解 / 四無礙智).

Four Unhindered Intellects (四無礙解): The Architecture of Unstuck Communication

One-Sentence Definition

Four Unhindered Intellects refers to the supreme, effortless mastery of enlightened beings in understanding and communicating truth—comprehending terms (*Fa* / Dharma), discerning core realities (*Yi* / Meaning), fluently navigating expressions (*Ci* / Language), and inspiring endlessly through untiring eloquence (*Le Shuo* / Joyful Discourse).

1. What This Concept Is Actually Saying

In mainstream modern culture, "eloquence" or "communication skill" is often reduced to rhetorical tricks, debate techniques, or persuasion algorithms. However, in the Buddhist path of liberation—particularly within the Mahāyāna paradigm—the Four Unhindered Intellects (梵: *pratisambhidā*, traditional terms: 四無礙解, 四無礙智, 四無礙力, or 四辯) represents something fundamentally different: it is not a set of social skills, but the natural overflowing of ultimate realization (*Anuttara-samyak-saṃbodhi*) into the world of expression.

To truly grasp this concept, we must unpack its four distinct, precisely delineated layers. They cannot be merged or loosely paraphrased, as each targets a specific bottleneck in human understanding and expression:

``` [ Ultimate Reality / Emptiness (第一義諦 / 空法) ] │ ▼ ┌─────────────────────────┐ │ 1. Yi (Meaning / 義) │ ── Insight into Ultimate Essence └─────────────────────────┘ │ ▼ ┌─────────────────────────┐ │ 2. Fa (Dharma / 法) │ ── Mastery of Names & Phenomena └─────────────────────────┘ │ ▼ ┌─────────────────────────┐ │ 3. Ci (Language / 辞) │ ── Fluency in Cultural Expressions └─────────────────────────┘ │ ▼ ┌─────────────────────────┐ │ 4. Le Shuo (Discourse) │ ── Endless, Fearless Communication └─────────────────────────┘ │ ▼ [ Sentient Beings Awakened to Liberation (得出世樂) ] ```

Layer 1: Intellect of Meaning (義無礙智, Artha-pratisambhidā)

* Classical Definition: Insight into the ultimate truth (*Paramārtha-satya*) and intrinsic reality of all phenomena. In the *Mahāparinirvāṇa Sūtra*, it refers to knowing that all three vehicles ultimately merge into one non-differentiated reality (*Ekayāna*). In the *Maha-saṃnipāta Sūtra*, it is honored as the supreme "crown" (頂) of the four, representing the understanding that ultimate meaning is ultimately "unutterable" (*Inexpressible*, 義不可說). * Boundary & Pitfall: "Meaning" (*Yi*) is not a subjective idea or personal opinion. It is the direct realization of How Things Truly Are—such as impermanence, non-self, and emptiness (*Śūnyatā*). Without *Yi*, talk is merely hollow jargon.

Layer 2: Intellect of Teaching/Phenomena (法無礙智, Dharma-pratisambhidā)

* Classical Definition: Penetrating comprehension of names, categories, labels, and conventional laws (*Saṃvṛti-satya*). It is described as "Word-retention" (*Zi-chi*, 字持)—the unconfused tracking of categories (e.g., Earth, Mountain, Eye, Mind). At an advanced level, it is the capacity to observe the 84,000 distinct mental tendencies and dispositions of sentient beings. * Boundary & Pitfall: "Dharma/Fa" is not just "Buddhist books." It refers to the exact catalog of terms, definitions, and conventional realities. If one understands ultimate emptiness (*Yi*) but cannot distinguish basic terms or mental conditions (*Fa*), one falls into quietism and cannot teach.

Layer 3: Intellect of Language/Expression (辭無礙智, Nirukti-pratisambhidā)

* Classical Definition: Fluency in all dialects, phonetics, and linguistic conventions (such as grammar, etymology, and everyday idioms). It enables a Bodhisattva to speak the languages of all realms (devas, dragons, humans, non-humans) flawlessly, while knowing that words themselves carry no inherent substance (*Word does not bind to law, law does not bind to meaning*). * Boundary & Pitfall: This is not mere slick sales talk. It is the fluid ability to translate abstract realities (*Yi*) and structured knowledge (*Fa*) into whatever vernacular, dialect, or contemporary metaphor best serves the listener, without getting stuck on rigid terminology.

Layer 4: Intellect of Joyful & Uninhibited Discourse (樂說無礙智, Pratibhāna-pratisambhidā)

* Classical Definition: The spontaneous, untiring, fearless ability to unfold teachings continuously across endless time. It is swift, sharp, unblocked, and perfectly tailored to bring out-of-world peace (*Lokottara-sukha*) to listeners. * Boundary & Pitfall: This is not compulsive talking or filibustering. It is the inexhaustible flow of compassionate communication that arises when self-referential fear (fear of losing face, running out of ideas, or being rejected) completely evaporates.

The Place of Four Unhindered Intellects in the Path to Liberation

Why are these four intellects so critical in the Buddha's teaching?

1. The Ultimate Bridge Between Realities: A practitioner who achieves realization (*Yi*) reaches the shore of peace. But to stay in the world and liberate others, they must cross back using conventional labels (*Fa*), human language (*Ci*), and endless engagement (*Le Shuo*). The Four Unhindered Intellects are the dynamic engine of the Bodhisattva's skillful means (*Upāya*). 2. Equivalence to Non-Attainment & Buddha-Nature: The *Mahāparinirvāṇa Sūtra* elevates this concept to the ultimate Mahāyāna level, asserting that **true Unhindered Intellect is simply "Non-Attainment" (*Wusuede*, 無所得)**. If a person's mind holds onto any concept or egoic goal, obstruction occurs. When five aggregates (*Skandhas*) are no longer grasped, total freedom of expression emerges. The sutra goes so far as to declare: *"Buddha-nature is precisely the Four Unhindered Intellects"*, because Buddha-nature is the inherently unblocked responsiveness of reality itself.

2. A Walkthrough in Contemporary Life

To prevent these four intellects from remaining abstract historical terms, let us trace how they break down—and how they ought to function—in a modern everyday scenario: A senior manager attempting to resolve a team crisis during a high-stakes project failure.

``` [ Modern Crisis Scene: High-Stakes Project Failure ] │ ┌───────────────────────────┴───────────────────────────┐ ▼ ▼ [ Trapped in Obstruction (有所得) ] [ Unhindered Walkthrough (四無礙) ] • Clings to ego & blame • 1. Meaning (義): Sees root causes & empty ego • Confuses labels with reality • 2. Dharma (法): Accurately tracks metrics & facts • Uses toxic jargon or silence • 3. Language (辞): Translates across engineering/biz • Reacts with defensiveness • 4. Discourse (樂説): Inspires confidence endlessly ```

Step 1: Meaning (義) — Discerning the Root Reality vs. Egocentric Noise

* Common Modern Mistake: The manager panics because their personal status, bonus, and self-image are threatened. They treat the project failure as an existential crisis of "me." * **The Correct Mapping (*Yi*)**: The individual perceives the deeper reality: a project failure is merely a temporary convergence of causes and conditions (*Pratītyasamutpāda*). Stripping away ego-preservation ("Will I get fired?"), they see the actual, underlying truth of the situation—the team is burnt out, technical debt caught up, and expectations were unrealistic. Because they hold no egoic grasping (*Non-Attainment*), their mind remains calm and unblocked.

Step 2: Dharma/Phenomena (法) — Structuring the Unconfused Facts

* Common Modern Mistake: The manager speaks in vague generalities ("Everyone needs to work harder!") or misdiagnoses technical problems due to lack of conceptual precision. * **The Correct Mapping (*Fa*)**: The individual clearly identifies and categorizes every element without confusion (*Word-retention* / 字持). They separate market shifts from software bugs, and structural deficiencies from personal mistakes. They accurately assess each team member’s capacity and emotional state (*Knowing sharp vs. dull faculties*, 知根利鈍).

Step 3: Language (辭) — Code-Switching Without Loss of Essence

* Common Modern Mistake: Using alienating corporate buzzwords, passive-aggressive emails, or technical jargon that confuses non-technical stakeholders. * **The Correct Mapping (*Ci*)**: The individual effortlessly adapts their vocabulary to the audience. When speaking to engineers, they use precise technical terms; when speaking to executive sponsors, they translate the exact same core truth (*Yi*) into financial and risk metrics; when speaking to an anxious junior employee, they use empathetic, reassuring language. They understand that words are merely vehicles (*Language carries no fixed entity*), so they do not cling to rigid phrasing.

Step 4: Joyful Discourse (樂說) — Fearless, Exhaustless Reassurance

* Common Modern Mistake: Exhaustion, retreat into silence, defensive debate, or angry tirades when met with sharp criticism during the debrief meeting. * **The Correct Mapping (*Le Shuo*)**: Because the manager has no ego to defend (*No fear of defeat*), their ability to communicate remains fluid, patient, and unshakeable. No matter how hostility or confusion is thrown at them, they continue to offer constructive solutions, clear explanations, and uplifting encouragement without running out of energy or losing composure.

3. Why Contemporary People Need It

Modern society is suffering from a paradox: we have more communication tools than ever, yet we experience unprecedented communication breakdown.

1. Breaking the "Echo Chamber" Dilemma: Today's polarization is largely a failure of *Nirukti* (Language) and *Dharma* (Categorization). People get trapped in hyper-specific subculture dialects (ideological jargon, tech-speak, academic buzzwords) and lose the ability to translate ultimate values into language that outsiders can hear. The Four Unhindered Intellects demand that true insight must be capable of multi-lingual, cross-contextual translation. 2. Eliminating "Presenter Anxiety" at the Source: Millions of modern professionals suffer from intense anxiety when speaking in public or presenting to leadership. Neuroscience and psychology often prescribe cognitive hacks or breathing exercises. The Buddhist diagnosis goes deeper: speech anxiety stems from *Grasping* (*有所得*)—trying to project an impressive image or fear of losing status. The four unhindered intellects show that genuine, fearless eloquence (*Le Shuo*) blooms naturally when ego-driven motives are abandoned in favor of compassionate service. 3. Dialogue with AI & Algorithmic Living: * *A Contemporary Comparison*: Generative AI Large Language Models (LLMs) excel remarkably at Language (*Ci*) and Data Structure (*Fa*). They can generate infinite text in thousands of dialects. * *The Critical Distinction & Scientific Limitation*: LLMs possess zero *Artha* (Meaning / 義). AI manipulates statistical probabilities of words without living awareness or direct realization of truth. Furthermore, cognitive neuroscience currently lacks any consensus model on how subjective consciousness (*Citta*) derives meaning from physical substrates (the "Hard Problem of Consciousness"). Expecting AI or pure linguistic syntax to resolve human existential suffering is an illusion. True Unhindered Intellect requires the living realization of *Yi*—the direct sight of reality as it is.

4. Common Misunderstandings & Clarifications

Misunderstanding 1: "Isn't this just sophisticated rhetoric or public speaking skills?"

* Clarification: Rhetoric can be learned through manipulation techniques and often serves self-interest or political persuasion. The Four Unhindered Intellects are rooted in **Emptiness (*Śūnyatā*)**. As the *Lotus Sūtra* points out, Pūrṇa achieved the four unhindered intellects precisely because he deeply comprehended the "Empty Dharma" (*空法*) taught by past Buddhas. Without realizing emptiness and non-self, eloquence is merely worldly debate (*世辯*), which remains bound by anxiety and pride.

Misunderstanding 2: "Can only high-level Bodhisattvas achieve this? Is it irrelevant to everyday practitioners?"

* Clarification: While complete, non-faulty Four Unhindered Intellects belong to advanced Bodhisattvas and Buddhas, its underlying framework serves as a daily practice guide for everyone. Whenever you feel "stuck" in a conversation, you can run a quick diagnostic: * Am I unclear about the core facts? *(Lacking Fa)* * Do I lack genuine understanding of the underlying reality? *(Lacking Yi)* * Am I using the wrong tone or vocabulary for this person? *(Lacking Ci)* * Am I defensive, hesitant, or afraid of losing face? *(Lacking Le Shuo)*

Misunderstanding 3: "Are Śrāvakas (Hearers/Arhats) completely destitute of these four intellects?"

* Clarification: Classical sutras present a nuanced, multi-perspective view on this: * **The *Mahāparinirvāṇa Sūtra* Perspective**: Emphasizes that Hearers and Solitary Buddhas (*Pratyekabuddhas*) do not possess *true, ultimate* Four Unhindered Intellects because they lack full Bodhisattva skillful means, do not know the permanence of Buddha-nature, and prefer solitary quietism over saving all beings. Praising disciples like Mahākausthila as "first in unhindered intellect" was merely relative to ordinary worldly people. * **The *Lotus Sūtra* Perspective: Reveals a grander unification. In the pure land of Law-Bright Tathāgata (the future Buddha realm of Pūrṇa), the vast assembly of Śrāvakas (Hearers) all possess the Three Clearances, Eight Liberations, and the Four Unhindered Intellects**. Once the ultimate Vehicle (*Ekayāna*) is understood, the barrier between vehicles dissolves, and all true practitioners inherit this radiant capacity to awaken the world.

Canonical EntryAI-generated

一、定义与核心要义 「四无碍解」（梵语：pratisambhidā），在汉译经典中常表述为「四无碍智」或「四无碍」，是菩萨与佛陀在度化众生、宣说妙法时所具足的四种通达无碍、自在辩才的智慧。其具体构成为：法无碍智（通达诸法名字与教法）、义无碍智（了达诸法真实义理）、辞无碍智（通晓一切语言音声与表达）以及乐说无碍智（随顺众生根机乐说不绝、无所畏惧）。这一智慧是说法人明辨众生根机、清净无畏演说大乘空法、教化一切有情的核心能力。

二、主要阐述 1. 多重法义内涵与维度 各经从不同层面对四无碍的内涵进行了深入阐释： - 世间与出世间层面：根据《大般涅槃经》，在世间层面，法无碍指通达一切法及其名字，义无碍指知晓法义并随名作义，辞无碍指随顺字论、正音论等世辩，乐说无碍指演说无碍、难可摧伏；在大乘出世间层面，法则指遍知三乘及诸佛之法，义指了知三乘归一、无差别相，辞指一法中作无量名且说之不尽，乐说指无量劫中为众生演说名义与异说而不穷尽。 - 字持与义持的隐喻：该经以「持」来隐喻法、义无碍。法无碍表现为善知「字持」而不忘失（如地、山、眼等字）；义无碍则是了知这些字持的内涵（如地能普持一切、山能持地令不动等）。 - 方位问答与实相维度：《大方等大集经》中，四无碍智与十方问答及菩提心实相相结合。如东、南、西、北四方众生分别问法、义、辞、乐说，菩萨则以相应的无碍智作答。宝女在论述中将四无碍智与菩提心及诸法实相相结合：义无碍智指菩提心中摄持一切义理或知「义不可说」；法无碍智指一切法界植入菩提心或知「一切诸法皆如幻相」；辞无碍智指实无文字而演说文字或「无言说业」；乐说无碍智指不可说法而能说不断绝。 - 度化众生与实践：菩萨依四无碍智，能如实观知众生八万四千心行并随应说法（法无碍）；悉知五道杂类众生语言并随类演说（辞无碍）；说说法无碍、不住、速疾、捷利，能令听者得出世乐（乐说无碍）。

2. 修行因缘与功德效用 四无碍智的获得源于长期的修行积累： - 修行来源：菩萨经无量劫，因修「世谛」得法无碍，修「第一义谛」得义无碍，学「毘伽罗那论」得辞无碍，修「说世谛论」得乐说无碍。此外，过去曾修四梵住及四无碍者，能获月藏三昧并证八地智慧。在《妙法莲华经》中，富楼那因于过去诸佛所明了通达「空法」而得四无碍智。 - 功德效用：如来之心于四无碍无念失。菩萨成就此智则能善知众生诸根利钝，所说无谬。受持「四无碍智净目持力」（陀罗尼）能调伏众生、烂败烦恼、入法缘慈。

三、不同部类与译本的表述差异 在不同经典及译本中，该概念的术语表述与细节用词存在明显差异： 1. 术语形式的差异： - 《大方等大集经》最常用「四无碍智」，亦简称为「四无碍」、「四无碍力」、「四辩」或「无碍辩」。 - 《妙法莲华经》译本统一采用「四无碍智」。 - 《大般涅槃经》（北凉译本）则并用「四无碍」、「四无碍智」与「四无阂」。 2. 核心要素的称呼与排序： - 《大集经》中明确其构成为「法无碍智」、「义无碍智」、「辞无碍智」和「乐说无碍智」，并以「义无碍智」为最殊胜之「顶」。 3. 名相用词的微细差别： - 在论及断除执着时，《大般涅槃经》使用的是「五阴」这一译语（指出菩萨不取著色乃至识等五阴，方能具足四无碍）。

四、与相关概念的关系 1. 与「无所得」及「佛性」的等同：《大般涅槃经》将四无碍提升至大乘究竟层面，指出真正的四无碍即是「无所得」；若心有所得即是障碍。无所得即是智慧、大涅槃、第一义空等。该经更直接宣称「佛性者名四无碍智」，佛性即是如来，因其能无碍宣说字义化度众生。 2. 与二乘（声闻、缘觉）的关系（部类分歧）： - 涅槃部观点：极力强调二乘无真实四无碍。缘觉因独处不说法、不知常住、不知众生悉有佛性，故无四无碍；声闻缺乏化导方便、不能毕竟知辞知义，亦无真实四无碍，舍利弗等「第一」仅是相对凡夫而言。 - 法华部观点：展现了不同的侧面。在法明如来（富楼那未来成佛）的净土中，不仅菩萨具足四无碍智，无数的「声闻众」也同样「得三明八解脱」并「得四无碍智」。 3. 与其他修行法门的关联：四无碍智与三解脱门、四梵行、四摄法等共同构成释迦牟尼佛度化众生的核心法门。

五、代表性原文引用 1. 《大方等大集经》：「东方法问以法无碍答，南方义问以义无碍答，西方辞问以辞无碍答，北方乐说问以乐说智答。」 2. 《妙法莲华经》：「于诸佛所说空法，明了通达，得四无碍智，常能审谛清净说法，无有疑惑。」 3. 《大般涅槃经》：「佛性者名四无碍智。以四无碍智因缘故，菩萨摩诃萨能无碍说字之与义，以是因缘，佛性即是四无碍智。」

By SutraAI-generated

《增壹阿含經》T0125 · 阿含部

本經以「四辯」「四辯才」之稱論述此概念，相當於四無礙解。經中明列四辯之體相、舉出證得者之例，並強調勸勉修學。

一、概念名稱與基本架構。本經以「四辯」「四辯才」為主要術語，與四無礙解義旨相通。四辯之標準名目為義辯、法辯、辭辯、應辯，分從所詮、所知、所表、能應四個面向建立。

二、四辯之具體釋義。經中對四辯各別解說：義辯者，「彼彼之所說，若天、龍、鬼神之所說，皆能分別其義」；法辯者，於「十二部經如來所說」，「諸法之實不可沮壞，所可總持者」；辭辯者，隨「男語，女語，佛語，梵志、天、龍、鬼神之語，阿須倫、迦留羅、甄陀羅彼之所說」，「隨彼根原與其說法」；應辯者，「當說法時，無有怯弱，無有畏懼，能和悅四部之眾」。

三、舍利弗自述之異名。本經舍利弗自述證得四辯時，所列名目為「義辯、法辯、應辯、自辯」，並言「我初受戒時，以經半月，得四辯才而作證，義理具足」。此處第四辯名為「自辯」，與同經他處所說「辭辯」用詞不同，可見本經內部即有兩種表述並行，呈現名相小異而所指相通的情形。

四、證得者之舉例。經中多處列舉得四辯才之人：摩訶拘絺羅比丘「得四辯才，觸難答對」；舍利弗自述已證；最勝比丘尼「得四辯才，不懷怯弱」。世尊更明言：「得四辯才，無有出拘絺羅」，以摩訶拘絺羅為四辯之首。

五、勸學之結勅。經末佛告諸比丘：「若此四辯，如來之所有，是故，當求方便，成四辯才。如是，諸比丘！當作是學。」以四辯為應修學之法，勸令比丘勤求成就。

綜合言之，本經論四無礙解，以「四辯」「四辯才」立名，依義、法、辭、應四種作用展開其體相，並於舍利弗自證一段中以「自辯」代「辭辯」之名，顯示此經內部用語之獨特形態，與摩訶拘絺羅、舍利弗、最勝比丘尼等具體證得者之例相呼應。

《妙法蓮華經》T0262 · 法華部

本經（題名《妙法蓮華經》，姚秦鳩摩羅什譯，屬法華部）論及「四無礙解」——即法、義、辭、樂說四種無礙智慧之概念時，全經一律以「四無礙智」一詞為主，未嘗將「法、義、辭、樂說」四種逐一列舉，亦未個別解說其內涵。以下依本經所呈，分四項歸納。

一、總標於說法人第一之富樓那彌多羅尼子

長行中佛告諸比丘，稱富樓那於說法人中最為第一，過去九十億佛所皆護持助宣正法，且「於諸佛所說空法，明了通達，得四無礙智，常能審諦清淨說法，無有疑惑，具足菩薩神通之力」。此處將「四無礙智」與「諸佛所說空法之明瞭通達」並舉，顯示此智乃契入諸佛空性法義而起之慧；其作用在「常能審諦清淨說法」，即以審實不虛、無染無疑之方式宣說正法。又強調其示現聲聞身分而「內祕菩薩行，外現是聲聞」，仍「具足菩薩神通之力」，可見本經並未將四無礙智限定於某一階位，而視為說法者之通德。

二、未來淨土菩薩眾之四無礙智

法明如來（富樓那未來成佛之果號）之淨土中，有「無量阿僧祇千萬億那由他諸菩薩眾，得大神通、四無礙智，善能教化眾生之類」。此處將四無礙智與大神通並列，且明其功能為「善能教化眾生」，顯示此智乃菩薩化度之根本方便。

三、未來淨土聲聞眾亦得四無礙智

同淨土中「聲聞亦無數，三明八解脫，得四無礙智，以是等為僧」。三明八解脫本為聲聞之果證，今此土聲聞眾亦得四無礙智，與三明八解脫並列為僧寶。偈頌中復以同樣之語重宣：「聲聞亦無數，三明八解脫，得四無礙智，以是等為僧」。此為本經之獨特表述：於一佛國之清淨僧中，聲聞、菩薩皆具四無礙智，且同為說法之僧。

四、偈頌之概括

偈云：「已度大神通，具四無礙智，知諸根利鈍，常說清淨法」，以四句總攝此德之全貌：四無礙智必與大神通俱；其具體作用為「知諸根利鈍」（鑑機）與「常說清淨法」（應機）。此與長行中「善能教化眾生」之說相呼應。

五、本經用詞之特點

本經一律以「四無礙智」名之，未嘗拆為「法、義、辭、樂說」四項分別解說；又將此智與「諸佛所說空法」之通達相結合，使四無礙智帶有契入空性法義之色彩，與一般以「四無礙辯才」為主之說法略異其趣。此即本經論述此概念之獨特側面。

《大般涅槃經（北本）》T0374 · 涅槃部

《大般涅槃經（北本）》對「四無礙解」的論述，圍繞法、義、辭、樂說四種無礙智慧展開，並以「無所得」與「不取著」為其核心精神。

一、四無礙的基本定義迦葉菩薩問佛，菩薩摩訶薩如是知得何等利？佛言能得四無礙：法無礙者知一切法及法名字；義無礙者知一切法所有諸義，能隨諸法所立名字而為作義；辭無礙者隨字論、正音論、闡陀論、世辯論；樂說無礙者凡所演說無有障礙、不可動轉、無所畏省、難可摧伏。

二、四無礙的多面詮釋此經從多個側面反覆闡明：從對象廣度，法無礙遍知聲聞、緣覺、菩薩、諸佛之法；義無礙乘雖三知其歸一，終不謂有差別之相；辭無礙於一法中作種種名，經無量劫說不可盡；樂說無礙於無量劫為眾生演說諸法不可窮盡。從修證態度，菩薩雖知諸法、諸義、名字、樂說而皆不取著，若取著者不名菩薩。從字義深層，法無礙者善知「字持」，所謂持者如地、如山、如眼、如雲、如人、如母；義無礙者知地普持一切眾生及非眾生，山能持地令無傾動等；辭無礙者以種種辭演說一義；樂說無礙者知辭知義故，於無量阿僧祇劫說辭說義而不可盡。從修習因緣，於無量劫修行世諦故得法無礙；修第一義諦故得義無礙；習毘伽羅那論故得辭無礙；修習說世諦論故得樂說無礙。

三、無所得即四無礙之義此經以「無所得」貫通四無礙：若有得者則名為礙，有障礙者名四顛倒，菩薩無四倒故得無礙。無所得者即名為慧、即大涅槃、即大乘、即方等經、即虛空、即常樂我淨、即第一義空。有所得者名二十五有、名生死輪、名無常無樂無我無淨。凡夫取著於色乃至識，生貪繫縛不得免生老病死，故無四無礙；菩薩知見法相而不繫著，故得四無礙。

四、二乘不得具足四無礙此經明確否定聲聞緣覺具足四無礙：緣覺雖知文字而不知常住二字故無法無礙；雖知於義而不知眾生悉有佛性故無義無礙；出世時世間無有九部經典故無辭無礙、樂說無礙。聲聞無軟語、麁語、不軟不麁三種善巧方便，又無十力、四無所畏，不能畢竟度十二因緣大河，不能善知眾生諸根利鈍差別，未能永斷二諦疑心，故無四無礙。經以恒河等水雖同無量而多少不等為喻，說聲聞緣覺或得一或得二，若具足四無有是處。

五、四無礙即佛性經更將四無礙提升至佛性層次：佛性者名四無礙智，以四無礙因緣故說字義無礙，字義無礙故能化眾生，四無礙者即是佛性，佛性者即是如來。

本經所用術語值得留意：以「字持」解法無礙；以「闡陀論」「隨字論」「正音論」「世辯論」明辭無礙之所攝；以「毘伽羅那論」標辭無礙所依之修習；又以「常住」二字之知否判定法無礙之有無，皆為此經獨特之說明方式。

三昧阿耨多羅三藐三菩提十力無礙智法無礙義無礙無諍四無所畏樂說無礙智辭無礙