Dharma · AI Companion

無始空

anavarāgra-śūnyatā

观无始生死本性空寂AI-generated

Type ViewDifficulty AdvancedTruth-level span II · emptiness ⇢ IV · beyond wordsInitial AI estimate · evolves with use

十八空为毕竟空之分说;般若系统内以「空亦复空」自破空相而指向离言,与锚点「空 见地 2→4」对齐。

A Contemporary ReadingAI-generated

What This Concept Means

In Mahāyāna Buddhism, Anavarāgra-śūnyatā (無始空, "Emptiness of the Beginningless" or "Emptiness of That Without Beginning or End") is one of the profound contemplation methods found within the traditional list of Eighteen Emptinesses (十八空).

To grasp its meaning without reducing it to an abstract piece of jargon, we must unpack its two core dimensions: the search for a ultimate origin and **the nature of cyclic existence (*saṃsāra*)**.

``` ┌── [Mahāprajñāpāramitā Sūtra] │ └── Absolute origin is unfindable ("若法初來處不可得"). │ └── Neither eternal nor extinct ("非常非滅"). │ └── Intrinsic nature of all phenomena ("性自爾"). Anavarāgra-śūnyatā ────────┤ (無始空) │ ┌── [Maha-parinirvāṇa Sūtra] └───┤ └── Saṃsāra has no temporal start ("見生死無始"). │ └── Both Saṃsāra and Ultimate Truth (Buddha-nature, │ Three Jewels) are quiescent ("皆悉空寂"). └─────── Beyond "conditioned vs. unconditioned" dualism. ```

1. The Prajñā-pāramitā Dimension: The Absolute Origin Is Unfindable

In the *Mahāprajñāpāramitā Sūtra* (摩訶般若波羅蜜經, T0223), *Anavarāgra-śūnyatā* addresses a fundamental cognitive habit: the obsession with finding a "first cause" or an absolute starting point.

The classical canonical definition states: > "If the initial origin of a phenomenon is unfindable, it is neither eternal nor extinct. Why? Because such is its self-nature. This is called *Anavarāgra-śūnyatā*." > (若法初來處不可得,非常非滅故。何以故?性自爾。是名無始空。)

* Unfindable First Origin ("初來處不可得"): Whether you search for the beginning of time, the ultimate starting point of the universe, or the first instant a specific emotion arose in your mind, no independent, isolated "first point" can ever be isolated. Every cause is itself the effect of a prior cause. * Neither Eternal nor Extinct ("非常非滅"): Because an ultimate starting point does not exist, phenomena cannot be said to "truly come into being" (hence they are not eternal entities); nor do they "completely vanish into nothingness" from a real existence (hence they are not extinct). * Intrinsic Nature ("性自爾"): This state of lacking an absolute origin is not a defect or a temporary flaw created by our perception; it is the fundamental, self-so nature of all reality.

In the *Mahāprajñāpāramitā Sūtra*, *Anavarāgra-śūnyatā* is paired with *Atyanta-śūnyatā* (畢竟空, Ultimate/Complete Emptiness) to form the "Two Emptinesses" (二空). Standing firmly in this dual realization, a Bodhisattva (*pusa mahāsatva*) achieves something extraordinary: they realize that all phenomena lack inherent existence (*無所有性*), yet they retain the crystal-clear ability to discern and categorize every name, mark, and characteristic of conventional reality—distinguishing good from bad, worldly (*sāsrava*, 有漏) from unworldly (*anāsrava*, 無漏), and conditioned (*saṃskṛta*, 有為) from unconditioned (*asaṃskṛta*, 無為).

They do not fall into nihilism; instead, they use this wisdom to dismantle the misperceptions of sentient beings who falsely project permanent substance onto the Five Skandhas (五陰/五蘊), Twelve Sense Bases (十二入/十二處), and Eighteen Dhatus (十八界). The Bodhisattva points out that these elements are devoid of a ultimate master or core entity—they are like dreams, echoes, shadows, mirages, illusions, and transformations (夢、響、影、焰、幻、化).

2. The Nirvāṇa Dimension: Saṃsāra Has No Beginning, and Even the Absolute Is Quiescent

In the *Maha-parinirvāṇa Sūtra* (大般涅槃經, T0374), *Anavarāgra-śūnyatā* takes on a radically comprehensive scope. The text explicitly defines it: > "Regarding *Anavarāgra-śūnyatā*: When the Bodhisattva Mahāsatva contemplates, he sees that saṃsāra is beginningless, and all is completely empty and quiescent." > (無始空者,菩薩摩訶薩觀時,見生死無始,皆悉空寂。)

In scriptures dealing with simpler stages of emptiness (such as *Internal-External Emptiness* 内外空 or *Conditioned Emptiness* 有為空), sutras often draw a boundary: worldly, conditioned things are empty, but sacred concepts—such as the Tathāgata, the Dharma, the Saṅgha, Buddha-nature (*buddhadvātu*), and Unconditioned Reality (*asaṃskṛta*)—are preserved as "not empty" (不在二空) to protect beginners from nihilism.

However, under the uncompromising lens of *Anavarāgra-śūnyatā* in the *Maha-parinirvāṇa Sūtra*, even these ultimate concepts—Permanence, Bliss, Self, Purity (常樂我淨), the Three Jewels (三寶), Sentient Life (眾生), and Buddha-nature (佛性)—are contemplated as "completely empty and quiescent, without modification" (皆悉空寂,無有變易).

This is not a denial of Buddha-nature; rather, it is the ultimate dialectical move. It prevents the practitioner from turning "Buddha-nature" or "Nirvāṇa" into a new, subtle, reified metaphysical object or a time-bound "destination." If Nirvāṇa were an entity with a temporal beginning, it would be a created thing, subject to decay. By recognizing that even the ultimate reality is *beginninglessly empty and serene*, the practitioner transcends the final conceptual trap: clinging to enlightenment itself.


A Walkthrough in Daily Life

To understand how *Anavarāgra-śūnyatā* functions, we must observe how our modern minds fall into trap after trap by constantly fabricating "beginning points" and reifying states.

``` +-----------------------------------------------------------------------------------+ | A Walkthrough in Daily Life | +-----------------------------------------------------------------------------------+ | [1] The Anxious Late-Night Query: "Where did my life go wrong?" | | • Mistake: Assuming a single, reified "First Cause" or origin point. | | • Anavarāgra-śūnyatā Lens: Cause and effect form a continuous, beginningless | | web. No isolated "Point Zero" exists ("若法初來處不可得"). | +-----------------------------------------------------------------------------------+ | [2] The Digital Doomscroll: Deconstructing the Experience | | • Mistake: Viewing modern stress as a solid, monolithic "reality." | | • Anavarāgra-śūnyatā Lens: Mapped through the Five Skandhas (五陰) & | | Sense Bases (十二入) — | | - Form (色): Glass screen, blue light, physical eye organ. | | - Sensation (受): Visceral pangs of envy, anxiety, or excitement. | | - Perception (想): Categorizing posts ("They are successful, I am failing").| | - Volition (行): The subconscious urge to flick the thumb and refresh. | | - Consciousness (識): Awareness registering sight and feeling. | | All five are like mirages and echoes (如夢、響、影). | +-----------------------------------------------------------------------------------+ | [3] Spiritual Burnout & Reification | | • Mistake: Turning "Inner Peace" or "Buddha-Nature" into a commodified goal. | | • Anavarāgra-śūnyatā Lens: Even sacred concepts and Unconditioned States | | are empty of fixed substance ("常樂我淨、佛性,皆悉空寂"). | +-----------------------------------------------------------------------------------+ ```

Scene 1: The Late-Night Panic — "Where Did It All Go Wrong?"

Imagine sitting on the edge of your bed at 2:00 AM, exhausted after a grueling workday, consumed by a sudden wave of existential anxiety. Your mind frantically traces backward: *Why am I so miserable? Is it because I picked the wrong college major ten years ago? Is it because my parents raised me a certain way? Is it because of that failed relationship in my twenties?*

* The Cognitive Distortion: You are looking for a "Point Zero"—a primary, ultimate cause of your current suffering. You believe that if you could just find the initial starting point, you could fix it, or at least have something solid to blame. * **The *Anavarāgra-śūnyatā* Mapping:** The *Mahāprajñāpāramitā Sūtra* steps in here: *"The initial origin of a phenomenon is unfindable"* (若法初來處不可得). Your anxiety tonight does not have a single, self-existent starting point. The decision you made ten years ago was conditioned by thousands of prior influences, which were conditioned by millions before them, stretching back into a temporal network with no absolute beginning (*無始*). Trying to pinpoint a single "beginning" is like trying to find the starting point of a sphere's surface. Recognizing this instantly cuts off the vicious cycle of self-blame and obsession with origins.

Scene 2: Bracing the Digital Noise (Deconstructing the Five Skandhas)

You open your phone during a crowded subway commute. You scroll through social media and see announcements of career promotions, lavish vacations, and polished lives. Your chest tightens; a wave of inadequacy washes over you.

Let us map this exact moment through the early translation terms featured in the *Mahāprajñāpāramitā Sūtra* (Five Skandhas as 五陰, Twelve Sense Bases as 十二入):

1. Form (色陰 / rūpa): The physical glass screen, the photons of light emitted, the retina of your eye, and your body sitting on the train seat. 2. Sensation (受陰 / vedanā): The immediate, unrefined physical and emotional feeling tone—a cold, uncomfortable knot in your stomach (unpleasant sensation). 3. Perception (想陰 / saṃjñā): The mental process of taking in features and attaching labels: "This is a photo of my former classmate," "That is a $100,000 car," "This means they are winning and I am lagging behind." 4. Volitional Formations (行陰 / saṃskāra): The habitual impulse, intention, and mental drive that follows—the subtle urge to close the app, the mental motion of envy, or the subconscious impulse to refresh the feed to find something to counter the discomfort. 5. Consciousness (識陰 / vijñāna): The underlying awareness that registers the visual inputs, thoughts, and emotions.

* Where People Mis-map It: Most people lump this entire sequence together and declare: *"I am a failure, and this platform makes me depressed."* They reify their identity and the external world into solid, real entities. * **The *Anavarāgra-śūnyatā* Insight:** The Bodhisattva contemplates that these Five Skandhas (五陰) and Twelve Sense Bases (十二入) are like "dreams, echoes, shadows, mirages, and illusions" (如夢、響、影、焰、幻、化). Where did the jealousy start? Did it originate in the phone screen (Form)? In the retina (Sense Base)? In the label (Perception)? In the past memory? It has no singular, self-standing origin (*無根本實性無所有*). The sensation arose from a temporary alignment of conditions and will dissolve when conditions shift. There is no solid "ego" inside experiencing it, nor is there a solid "event" outside causing it.

Scene 3: The Pitfall of Spiritual Pursuit

Consider someone who has been practicing meditation for years. They are burnt out by modern life, so they treat meditation as an escape. They tell themselves: *"The modern world is dirty, noisy, and full of illusion. I am searching for my true, permanent, pure Buddha-nature—a place of absolute, unchanging peace."*

* Where People Mis-map It: They create a subtle dualism. They make *Saṃsāra* (the noisy world) an evil thing to be destroyed, and *Buddha-nature* or *Nirvāṇa* a solid, ultimate object to be acquired. * **The *Anavarāgra-śūnyatā* Correction:** Here, the *Maha-parinirvāṇa Sūtra* delivers its radical insight: even Permanence, Bliss, Self, Purity (常樂我淨), the Three Jewels (三寶), and Buddha-nature (佛性) are contemplated as *completely empty and quiescent* (皆悉空寂). Why? Because if you treat "Buddha-nature" as a ultimate, self-existent refuge hidden somewhere in time, you have merely replaced a worldly attachment with a spiritual attachment. Realizing that even the ultimate reality is beginninglessly empty prevents you from turning enlightenment into a mental trophy.


Why Contemporary People Need It

Modern society is hyper-obsessed with Linear Causality, Definitive Beginnings, and Identity Reification. This makes *Anavarāgra-śūnyatā* an essential cognitive tool for navigating contemporary psychological pressures.

``` +-----------------------------------------------------------------------------------+ | Why Contemporary People Need It | +-----------------------------------------------------------------------------------+ | Contemporary Mental Traps Anavarāgra-śūnyatā Realization | | ------------------------- ------------------------------ | | • Linear Origin Obsession • Infinite, Beginningless Web | | ("I must find the root cause (No isolated "Point Zero" exists; | | of my personal defect.") cuts off endless trauma-regress). | | | | • Algorithmic Echo Chambers • Deconstructs "Solid Realities" | | (Mistaking curated feeds (Apprehends media inputs as floating | | for absolute truth). shadows and mirages [如影如幻]). | | | | • Spiritual Commodification • Quiescence of Ultimate Concepts | | (Treating self-care / peace (Prevents reifying "peace" or | | as a high-value consumer item). "enlightenment" into a subtle trophy). | +-----------------------------------------------------------------------------------+ ```

1. Breaking the Infinite Regress of Psychological Blame

Modern psychotherapy and self-help culture often encourage us to dig endlessly into our past: *Find the root cause of your anxiety. Find the exact childhood moment your insecurity began.* While exploring personal history has clinical value, minds often get trapped in a loop of deterministic despair, believing they are permanently broken because of a past event. *Anavarāgra-śūnyatā* reminds us that in the vast, interconnected web of existence, cause and effect stretch back infinitely (*生死無始*). There is no single, pristine "original state" that was ruined, nor is there an isolated "first cause" of your current distress. Seeing that conditions are empty of an absolute origin frees us from historical determinism.

2. Navigating the "Algorithm Life" Without Cynicism

We live in an age dominated by algorithms designed to grab attention by evoking strong emotional reactions. These feeds construct hyper-realities that make us feel isolated, inadequate, or outraged. If we view the world through *Anavarāgra-śūnyatā*, we do not need to run away to a cave, nor do we need to believe the algorithmic narrative. Like the Bodhisattva who abides in the Two Emptinesses (*畢竟空、無始空*), we can sit right in front of a screen, clearly discern every digital phenomenon—recognizing what is wholesome, unwholesome, informative, or manipulative—without letting any of it stick to the mind as a "solid, absolute reality." We see the digital realm for what it is: an intricate display of lights, codes, and mental projections—like a dream, an echo, or a shadow (如夢、如響、如影).

3. Parallels and Limits in Modern Science

Modern scientific frameworks offer interesting parallels to *Anavarāgra-śūnyatā*, though they operate on different planes:

* Cosmology and Quantum Physics: Quantum field theory demonstrates that particles do not possess inherent, independent existence; they emerge as localized excitations of underlying fields, lacking an isolated, solid "substance." Furthermore, modern cosmological inquiries into the Big Bang increasingly question whether "Time Zero" was a true absolute beginning or merely a transition in an endless cosmic cycle (such as eternal inflation or cyclic bouncing universes). * Neuroscience: Cognitive neuroscience shows that our perception of a solid world and a unified "Self" sitting behind our eyes is an illusion generated by complex neural networks. There is no central "executive controller" in the brain; experiences arise from distributed processes.

Crucial Distinction & Limitation: While science describes physical phenomena and cognitive mechanisms through empirical observation, it does so within a dualistic, objective framework. Science seeks to measure and map measurable properties. *Anavarāgra-śūnyatā*, on the other hand, is an experiential, soteriological insight (般若智慧) aimed at liberating the human mind from existential suffering and conceptual clinging. Science analyzes the world; *Anavarāgra-śūnyatā* deconstructs the observer's attachment to both the world and the analysis itself.


Common Misinterpretations and Clarifications

Because *Anavarāgra-śūnyatā* touches upon both the origin of time and the emptiness of ultimate spiritual concepts, it is exceptionally easy to misread. Here are the three most common misinterpretations clarified through canonical sources.

``` +------------------------------------------------------------------------------------+ | Common Misinterpretations & Clarifications | +------------------------------------------------------------------------------------+ | Misinterpretation Canonical Clarification | | ----------------- ----------------------- | | 1. "Beginningless means • Incorrect. "Unfindable" ("不可得") | | an infinite line of real means time itself lacks a solid, self-existent | | time stretching back." substance. It is not an infinite timeline of real | | building blocks, but a concept free from extremes. | | | | 2. "If all is empty, then • Incorrect. The Bodhisattva abides in | | good, bad, and ethics Anavarāgra-śūnyatā specifically to *discern* | | do not matter." phenomena clearly (如實分別善、不善、有漏、無漏) | |, acting with boundless compassion. | | | | 3. "Nirvāṇa Sūtra contradicts • Incorrect. It is a profound dialectic. In lower | | Prajñāpāramitā by calling views, Buddha-nature is kept 'not empty' to avoid | | Buddha-nature empty." nihilism; in Anavarāgra-śūnyatā, even Buddha-nature| | is empty of reification to avoid subtle clinging | |. Both preserve ultimate freedom. | +------------------------------------------------------------------------------------+ ```

1. Misinterpretation: "Beginningless" means a timeline that goes back endlessly, composed of real past events.

* Clarification: People often picture a literal timeline stretching leftward into negative infinity, consisting of solid moments of time. But the *Mahāprajñāpāramitā Sūtra* explicitly states: *"If the initial origin of a phenomenon is unfindable, it is neither eternal nor extinct"* (非常非滅). To say time is "beginningless" (*無始*) does not mean an infinite chain of inherently real seconds occurred before this moment. It means that "beginning" is an arbitrary mental concept. Time itself is dependent upon conditioned mental constructions. Because no independent "first moment" can ever be established, the entire linear framework of time lacks absolute reality—it is "empty" (*空*).

2. Misinterpretation: "If everything is beginninglessly empty, moral distinctions and actions are meaningless."

* Clarification: This is the dangerous pitfall of nihilism (*uccheda-dṛṣṭi*, 斷滅見). The *Mahāprajñāpāramitā Sūtra* directly refutes this by highlighting the unique capability of a Bodhisattva. When the Bodhisattva abides in *Anavarāgra-śūnyatā* and *Atyanta-śūnyatā*, they do not fall into apathy. On the contrary, because they are free from emotional projection and conceptual delusion, they can clearly distinguish all conventional phenomena—accurately discerning what is good, bad, worldly, unworldly, conditioned, and unconditioned. They then use skillful means (*upāya*) to guide sentient beings, leading them through the practice of generosity (*dāna*), ethics (*śīla*), and meditation (*dhyāna*), helping them realize various stages of liberation up to Supreme Enlightenment (*Anuttarā-samyak-saṃbodhi*). Wisdom without moral clarity is not Buddhist emptiness; it is mere confusion.

3. Misinterpretation: "The Maha-parinirvāṇa Sūtra contradicts itself by stating Buddha-nature is NOT empty in some chapters, but EMPTY in Anavarāgra-śūnyatā."

* Clarification: This apparent tension represents the depth of Mahāyāna dialectics. When the *Maha-parinirvāṇa Sūtra* states in earlier passages that "Buddha-nature is not empty" (*佛性非有為法空*), it is addressing practitioners who mistakenly believe that Nirvāṇa is total annihilation or total non-existence. It emphasizes the positive,常樂我淨 (Permanence, Bliss, Self, Purity) aspects of ultimate reality to inspire confidence.

However, when the text introduces *Anavarāgra-śūnyatā*, it elevates the practitioner to the ultimate level of contemplation. At this level, if a practitioner holds onto "Buddha-nature" or "The Three Jewels" as concrete, self-existent entities, that subtle holding becomes the final obstacle to total liberation. Therefore, under *Anavarāgra-śūnyatā*, even Buddha-nature, the Three Jewels, and Unconditioned Reality are recognized as "completely empty and quiescent" (皆悉空寂). This is not a contradiction; it is the ultimate medicine that removes even the concept of medicine, ensuring that the mind rests in unconditioned, ungraspable freedom.

Canonical EntryAI-generated

一、定义与核心要义 「無始空」(anavarāgra-śūnyatā)是佛教大乘经典中阐释的「十八空」之一。对于「無始空」的核心定义,不同部类的经典有着不同的侧重点:在《摩訶般若波羅蜜經》(般若部)中,「無始空」是指一切法最初的来处、源头是了不可得的。这种空性状态既非恒常,亦非断灭(「非常非滅」),而是诸法本自如此的自性(「性自爾」)。在《大般涅槃經》(涅槃部)中,「無始空」则是指菩萨摩诃萨在修行观照时,「見生死無始,皆悉空寂」。即众生流转的生死轮回没有可以寻得的起点,且这无始以来的生死本性在智慧观照下完全是空虚而寂静的。 ### 二、主要阐述 根据经典记载,「無始空」在菩萨修行与度化众生中具有极其重要的地位,其主要阐述可从以下两个维度展开: 1. 般若部的度化与分别诸法维度:在《摩訶般若波羅蜜經》中,「無始空」与「畢竟空」并称为「二空」,是菩萨摩诃萨行深般若波罗蜜、为众生说法时的重要立足点。菩萨在「畢竟空、無始空」的境界中,不仅能了知「諸法無所有性」,还能清晰地分别诸法的名相与性质(如善与不善、有漏与无漏、有为与无为等)。这种在空性中分别诸法并教化众生的能力,是声闻、辟支佛所不能及的希有法门。在具体教化中,菩萨基于「無始空」等空性,向众生揭示五阴、十二入、十八界皆空无所有,犹如梦、响、影、焰、幻、化,其中并无真实的阴入界或主宰者,一切法皆「無根本實性無所有」。在破除众生因颠倒心而妄取根本相的执着后,菩萨再以方便力引导众生修持布施、持戒、禅定等功功德,最终将其安置于无余涅槃、三十七助道品及诸佛不共法中,令众生随其根机分别证得须陀洹果、斯陀含果、阿那含果、阿羅漢果、辟支佛道,乃至最终住于阿耨多羅三藐三菩提中。 2. 涅槃部的究竟空寂维度:在《大般涅槃經》中,「無始空」作为十八空观法之一,展现了极为广泛且独特的空性范畴。在此观照下,「常樂我淨」皆悉空寂、无有变易。甚至通常被视为常住不变的「眾生」、「壽命」、「三寶」(佛、法、僧)、「佛性」以及「無為法」,在「無始空」的观照维度中,也同样被纳入「皆悉空寂」的范畴。这展现了该经在处理「空」与「不空」(如佛性常住)关系时的深层辩证。 ### 三、不同部类与译本的表述差异 在不同部类及译本中,关于「無始空」相关法相的翻译与表述存在明显的时代与流派特征: 1. 蕴、处、界的译语差异:《摩訶般若波羅蜜經》(《摩訶般若波羅蜜經》)采用了较早期的译语,以「陰」(或「五陰」)称呼五蕴,以「十二入」称呼十二处。而《大般涅槃經》(《大般涅槃經(北本)》)则使用「陰界入」这一合称来统括构成众生与世间的基本要素。 2. 空性范畴的界定差异:在《摩訶般若波羅蜜經》中,「無始空」主要用于破除众生在「無陰中見有陰,無入見有入,無界見有界」的颠倒见,强调一切法「無根本實性無所有」。而在《大般涅槃經》中,「無始空」的观照范围极为特殊。该经在论述「內外空」或「有為空」时,曾明确强调「唯有如來、法、僧、佛性,不在二空」且「佛性非有為法空」;然而在「無始空」的特定观照下,三宝、佛性、无为法以及常乐我净却皆被视为「皆悉空寂」。 ### 四、与相关概念的关系 1. 与「畢竟空」的关系:在般若经中,二者并称为「二空」,是菩萨住其中为众生说法的双重智慧基础。菩萨在此境界中既能了知诸法无所有性,又能清晰分别诸法名相。 2. 与「性空」的关系:在《大般涅槃經》中,二者同属十八空。观「性空」是指观照包括「陰界入」在内的一切诸法「本性皆空」、「不見本性」;而「無始空」则侧重于观照「生死無始」以及常乐我净、三宝佛性等皆悉空寂。 3. 与「內外空」、「有為空」的关系:在《大般涅槃經》的体系中,后二者不将如来、法、僧、佛性纳入空观(「不在二空」),而「無始空」则打破了这一界限,将包括三宝、佛性在内的一切法皆观为「皆悉空寂」。 ### 五、代表性原文引用 1. 《摩訶般若波羅蜜經》:「若法初來處不可得,非常非滅故。何以故?性自爾。是名無始空。」 2. 《摩訶般若波羅蜜經》:菩薩摩訶薩行深般若波羅蜜時,「住二空中——畢竟空、無始空——為眾生說法」。 3. 《大般涅槃經》:「無始空者,菩薩摩訶薩觀時,見生死無始,皆悉空寂。」 4. 《大般涅槃經》:「常樂我淨,皆悉空寂,無有變易,是名無始空。」

By SutraAI-generated

摩訶般若波羅蜜經T0223 · 般若部

《摩訶般若波羅蜜經》對「無始空」的論述,可從定義與菩薩行的運用兩方面來看。

首先,就定義而言,本經將無始空與內空、外空、內外空、空空、大空、第一義空、有為空、無為空、畢竟空等並列,作為一系列空門中的一門。其原文定義為:「若法初來處不可得,非常非滅故。何以故?性自爾。是名無始空。」 也就是說,無始空是指諸法最初的起始來處不可得、不可尋覓,此空既非常住不滅,亦非斷滅,而是「性自爾」——本性自然如此。本經並非將「無始」理解為時間上的久遠,而是從「初來處不可得」入手,揭示任何法的起點皆無法被執取,從而顯示本性空寂。這一定義與同段經文中前一句所說的「畢竟空」前後相續——經云「畢竟名諸法畢竟不可得」,接著說「若法初來處不可得」即無始空——兩者構成一對:畢竟空從「畢竟不可得」之邊說終不可得,無始空從「初來處不可得」之邊說始不可得。

其次,就菩薩行的運用而言,本經特別指出菩薩摩訶薩行般若波羅蜜時「住二空中——畢竟空、無始空」,以此二空為所住,觀察諸法如夢、如響、如影、如焰、如幻、如化,無有實事、無所有性、自相空。值得注意的是,本經並非僅止於諸法空寂的觀照,而是強調菩薩能於「諸法無所有性,畢竟空、無始空而分別諸法」,即在畢竟空、無始空的正觀之中,仍能區分善法與不善法、世間法與出世間法、有漏與無漏、有為與無為,乃至能辨須陀洹果以至阿耨多羅三藐三菩提等種種差別。須菩提因而讚歎菩薩摩訶薩「甚希有難及,能行是深般若波羅蜜。諸法無所有性,畢竟空、無始空而分別諸法」,因為諸法空無所有而能善巧分別,是聲聞、辟支佛所不能及的稀有難及之法。

在術語方面,本經以「般若波羅蜜」稱般若波羅蜜多,以「菩薩摩訶薩」稱菩薩摩訶薩,以「十二入、十八界」稱十二處、十八界,以「檀那波羅蜜」稱檀那波羅蜜多,以「六波羅蜜」稱六波羅蜜多;眼耳鼻舌身意、色聲香味觸法等較古譯形式沿用之,未見藏識、阿賴耶識等唯識系術語。

綜上,《摩訶般若波羅蜜經》以「若法初來處不可得」一句精要地定義無始空,並將其與畢竟空並列為菩薩住二空而行的核心觀門,顯示本經對「空」的重點不在時間意義上的無始,而在於任何法的起始處皆不可執取,從而性自空寂;以此二空為基,菩薩方能於無所有性中善巧分別諸法差別。

大般涅槃經(北本)T0374 · 涅槃部

《大般涅槃經(北本)》對「無始空」之論述,置於菩薩摩訶薩觀察諸種「空」的法門系列之中,依序列有內空、外空、內外空、有為空、無為空、無始空、性空、無所有空等,曇無讖以問答體裁逐一解釋。以下就無始空部分歸納要點:

一、定義與核心義涵 經文以「云何菩薩摩訶薩觀無始空」發問,緊接作答:「是菩薩摩訶薩見生死無始,皆悉空寂。」此定義標出雙重要義:其一,時間向度上,菩薩觀見生死流轉本無起點(無始);其二,性相向度上,此無始之生死本性畢竟空寂。與同段其他種「空」相比,無始空獨特之處在於以「無始」標出輪迴之時間特性,再以「空寂」顯其本性。

二、「空寂」之具體內涵 經文接言:「所謂空者,常樂我淨,皆悉空寂,無有變易。」此處所謂「空」,並非空無之空,而是常住不變、空寂無動之義。值得注意的是,本經以「常樂我淨」四字作為「空」之具體內容,與此段無為空中所列「無常、苦、不淨、無我」恰成對比——同為「空」之內容,一以四德之常為空,一以四行之無常為空,顯示本經常住之立場。

三、所觀照之對象 經文列舉:「眾生壽命、三寶、佛性及無為法,是名菩薩觀無始空。」即無始空觀照所及,包含眾生、壽命、三寶、佛性、無為法。其中:「三寶」即佛、法、僧;「佛性」乃本經最為強調之核心概念,與「三寶」並列而為常住真實之法。本經認為此等常住之法雖歸入「無始空」之觀照,然其「空」乃「空寂無變易」之空,非空無斷滅之空,故與上文有為空、無為空之判攝有所不同。

四、與前後諸「空」之銜接 就上下文觀之,有為空攝「內空、外空、內外空、常樂我淨空、眾生壽命、如來法僧、第一義空」,且明言「佛性非有為法,是故佛性非有為法空」。無為空則攝「無常、苦、不淨、無我、陰界入、眾生、壽命相、有為、有漏、內法、外法」,並云「無為法中,佛等四法,非有為,非無為。性是善故,非無為,性常住故,非有為」。及至無始空,則進一步將三寶、佛性、無為法納入觀照範圍,顯示其「空」之義更為深廣,能攝常住之法。

五、用語特徵 本經論「無始空」所用術語具明顯特色:以「生死」表輪迴;以「常樂我淨」並列為涅槃四德之代稱;以「三寶」指佛、法、僧(同一段有為空中則作「如來法僧」);以「佛性」一詞貫穿全篇,凸顯本經獨特之「佛性常住」說;以「無為法」對應有為法。此外,本經於無為空中以「陰界入」並稱,對應他經所稱「五蘊、十八界、十二入」之三科,此亦為本經譯語之一大特徵。

大智度論T1509 · 釋經論部

《大智度論》以「無始空」一詞,展開雙重破斥與中道安立。論中先標「無始」之義:「如今生從前世因緣有,前世復從前世有,如是展轉,無有眾生始」;並引經云「眾生無有始,無明覆,愛所繫,往來生死,始不可得」。此經以「五眾」稱五蘊、以「眾生」稱有情,術語形式值得留意。

論主旋即指出破斥之必要:若執「無始」為實,則墮「有始」之邊見;若破無始而落入有始,亦墮邊見。故須以「無始空」再破「無始」之執,譬如救人於火不應投入深水,行於中道。「今以無始破有始,無始即復為患;復以無始空破是無始,是名無始空」。

於十八空之列舉中,《大智度論》定義「無始空」云:「若法初來處不可得,非常非滅故。何以故?性自爾。是名無始空」。又以二空分工互補之姿態安置其功用:「畢竟空破諸法,無始空破眾生相」;「一切所有:若法、若眾生」,菩薩以二空破二事。論中明言餘空如火燒木猶有灰燼,而畢竟空最為甚深畢盡。

論主闡明佛說「無始」之本懷,非謂實有,乃為令眾生知曠劫輪迴之苦而生厭離。經舉「一人一劫中受身被害時聚集諸血,多於海水」、「積集身骨,過於毘浮羅山」、「譬喻斬天下草木為二寸籌,數其父、祖、曾祖,猶不能盡」等無量生死之喻。此與無常之施設同理——雖是邊見,以之度眾;無始亦然,能破「著始」之顛倒;若復著於無始,則以無始空破之。

至於何以但說破無始、不說「有始空」,論中區別二者:皆邪見而有差——有起始諸煩惱邪見因緣,無起始慈悲及正見因緣。念眾生無始世苦惱而生悲心,知從身次第生身相續不斷便知罪福果報而生正見。無始能畢竟破有始,有始不能畢竟破無始,故無始為勝,如善能畢竟破惡、惡不能究竟破善。

他處又以「我無邊」配合無始空說明眾生空之理:「此中說『我無邊』,我即眾生,眾生空。何以故?無始空故」;並以「畢竟空」等同「畢竟清淨」之表述以隨順眾生畏空之心。全論反覆申明「諸法無所有性,畢竟空、無始空,而分別諸法是善、是不善、有漏、無漏」之菩薩深行。

整體而言,《大智度論》以「無始空」一詞貫穿破執、中道、慈悲三層意涵,並與「畢竟空」分工互補,共同構成般若空觀之骨幹。

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