Dharma · AI Companion

無欲界

akāmadhātu

超离欲贪系缚的境界AI-generated

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

A Contemporary ReadingAI-generated

What this concept is saying

無欲界 (*akāma-dhātu*, “the sphere of freedom from desire”) is a condition of release realized through the ending of 愛欲 (*ài-yù*, craving or desirous attachment) and the complete distancing from 欲貪 (*yù-tān*, sensual greed). The *Saṃyukta Āgama* (《雜阿含經》) gives the definition with unusual directness:

「斷除愛欲,是無欲界。」 “The ending of desirous craving is the sphere of freedom from desire.”

The word 界 (*dhātu*, sphere or domain) matters. Here it does not mean a geographical world to which someone travels. It marks a mode of liberation characterized by what has been relinquished. One inhabits the “sphere” of non-desire when craving no longer binds the mind.

This must first be distinguished from 欲界 (*kāma-dhātu*, the desire realm). The desire realm is a plane of conditioned existence dominated by sensual appetite; 無欲界 is a liberating sphere attained through the ending of craving. The two expressions look like opposites because of the added 無, but they do not name adjacent locations in a Buddhist cosmological map.

The *Saṃyukta Āgama* places 無欲界 among three 諸解脫界 (“spheres of liberation”):

- 斷界 (*prahāṇa-dhātu*, the sphere of abandoning): “the abandoning of all conditioned activities.” - 無欲界 (*akāma-dhātu*, the sphere of freedom from desire): “the ending of desirous craving.” - 滅界 (*nirodha-dhātu*, the sphere of cessation): “the cessation of all conditioned activities.”

These are closely related descriptions of release, but the scripture does not flatten them into synonyms. They look at liberation through different doors: what is abandoned, what attachment is left behind, and what conditioned process ceases. 無欲界 places the emphasis specifically on the severing of craving.

The *Yogācārabhūmi* (《瑜伽師地論》) gives the distinction a more technical form. It calls 無欲界 one of five 離繫品界, “spheres belonging to release from bondage,” and explains:

「修道所斷諸行斷故,名無欲界。」 “Because the conditioned activities abandoned on the path of cultivation have been abandoned, it is called the sphere of freedom from desire.”

It adds:

「所有欲貪皆遠離故,名為無欲。」 “Because all sensual greed has been completely left behind, it is called freedom from desire.”

In this analysis, 斷界 concerns the conditioned factors abandoned through the path of seeing; 無欲界 concerns those progressively abandoned through the path of cultivation; 滅界 concerns the cessation of their basis. The corresponding practices are 修厭, cultivating disenchantment; 修離欲, cultivating dispassion; and 修滅, cultivating cessation. These distinctions should be preserved even though all three belong to the movement of liberation.

This also shows why “having no desire at the moment” is not yet 無欲界. A desire may be absent because one is tired, distracted, frightened, temporarily satisfied, absorbed in meditation, or prevented from reaching its object. None of these necessarily uproots craving. The *Yogācārabhūmi* distinguishes the quieting of its 現行, its presently active manifestations, from the destruction of its 隨眠, its latent disposition. Contemplating impurity, unsatisfactoriness, non-self, and repeatedly maintaining mindful disenchantment can calm active sensual greed. Complete freedom requires the latent tendency to be extinguished without remainder, so that it cannot arise again in the future.

That is the decisive boundary of the concept:

- suppression means that craving is presently unable to act; - restraint means that one does not obey it; - calm means that it is not presently agitating the mind; - 無欲界 means, in its fulfilled sense, that the bondage itself has been brought to an end.

This freedom is not produced by merely hating pleasurable things. Hatred is another form of bondage: the mind still depends upon the object, only negatively. Genuine 離欲 (*virāga*, dispassion) is cooler and more spacious. The pleasant may be known as pleasant, but the mind no longer turns that pleasantness into “I must possess this,” “this must continue,” or “without this I cannot be whole.”

Nor does Buddhism ask that every form of motivation be eliminated. The *Yogācārabhūmi* itself says that the relevant practice requires 猛利樂欲, an ardent aspiration. The wish to understand suffering, cultivate the path, protect another person, or attain liberation is not automatically identical with 欲貪. The issue is not whether energy and intention occur, but whether the mind is appropriating an object as the condition of its identity and completion. One form of desire tightens bondage; a wholesome aspiration can help bring bondage to an end.

The road to 無欲界 is therefore not passivity. In the *Saṃyukta Āgama*, Ānanda asks what a monastic living alone in an empty place, beneath a tree, or in a quiet room should contemplate. The elders, five hundred monastics, and the Buddha give the same answer: cultivate 止 (*śamatha*, calming) and 觀 (*vipaśyanā*, insight). When calming is developed, it matures toward insight; when insight is developed, it matures toward calming. Through their cultivation together, a noble disciple realizes the spheres of abandoning, freedom from desire, and cessation.

Calming allows craving to be seen without immediately becoming its servant. Insight penetrates the conditioned, impermanent, unsatisfactory, and non-self character of the entire event. Calm without sufficient insight may only place craving in temporary suspension. Analysis without calm may understand craving conceptually while remaining helpless when it becomes emotionally charged. Their conjunction reaches more deeply: the mind both ceases to be swept away and understands why there is nothing in the experience that can securely be possessed as “mine.”

無欲界 also serves as nourishment for 捨覺分 (*upekṣā-sambojjhaṅga*, the awakening factor of equanimity). The *Saṃyukta Āgama* says that contemplating the spheres of abandoning, non-desire, and cessation enables unarisen equanimity to arise and arisen equanimity to grow. This equanimity is not indifference. It is the balance possible when experience no longer has to be sorted compulsively into “what will complete me” and “what threatens what is mine.”

The *Yogācārabhūmi* accordingly treats 無欲界 both as an attained release and as the direction of practice before attainment. One who has not realized it but cultivates in order to do so is said to 修離欲, “cultivate dispassion with respect to conditioned activities.” In the cultivation of the factors of awakening, such practice is called 依離欲, “relying upon” or “inclining toward dispassion.” The goal is already shaping the manner of walking toward it.

At maturity, this is not an isolated victory over a single appetite. The treatise connects it with the completion of the factors conducive to awakening: what had to be known has been known; what had to be abandoned has been abandoned; what had to be realized has been realized; and what had to be cultivated has been cultivated. Ignorance and the craving for continued existence are abandoned, lucid knowledge and liberation from the afflictions are realized, and both calming and insight have been cultivated.

For this reason the treatise calls 無欲界 a 「妙甘露門」, a “wondrous gate to the deathless.” Through mindfulness and the signless concentration of mind, wrong thoughts and distorted representations are overcome. One who abides in the spheres of abandoning and non-desire is said to be 「近二涅槃」, “near the two nirvāṇas”—nirvāṇa with a remaining basis and nirvāṇa without a remaining basis. The wording still preserves the distinction: 無欲界 is intimately oriented toward nirvāṇa, but the treatise does not simply erase the different names and declare every one of these spheres interchangeable.

A walk-through in everyday life

Imagine an evening commute. You have worked late, you are tired, and you open your phone. An algorithm presents a short video of an expensive apartment with an immaculate kitchen. The following stages are worth watching carefully.

First, a visible form appears, together with sounds and captions. Attention selects it; recognition identifies “beautiful apartment,” “successful life,” and perhaps “the kind of home people admire.” This recognition is not yet, by itself, craving. It is the mind taking up and identifying features of experience.

A pleasant feeling follows. The images are agreeable; the imagined life feels expansive. Pleasant feeling is also not identical with craving. This distinction is crucial. Freedom from desire does not require sensory anesthesia, and Buddhism does not define liberation as an inability to experience pleasure.

Then appropriation begins: “I need a home like that. If I had it, I would finally feel that I had succeeded.” The mind no longer merely sees an apartment or experiences pleasant feeling. It recruits the object into a story about the self. The image is made to promise completion.

The body tightens. You compare your home with the image, your salary with someone else’s apparent wealth, and your life with a carefully edited performance. One clip leads to property listings; property listings lead to calculations; calculations lead to resentment toward your job or partner. The initial pleasant stimulus has become a chain of thirst, identification, comparison, and renewed becoming.

The most common mapping error is to say that the apartment, the phone, or the pleasant feeling “is desire.” It is not. The external form is an object; recognition identifies it; pleasant feeling registers its agreeable tone. 欲貪 is the grasping movement that invests the object with “I must have this” and binds one’s well-being to its acquisition or continuation.

Now suppose you put the phone away only because your battery dies. The active craving may become quiet, but its latent disposition remains. The next advertisement can revive it. That is temporary interruption, not 無欲界.

Suppose instead that you scold yourself: “Spiritual people should not like beautiful homes.” Shame now fights appetite. The object still governs the mind, and aversion has been added to craving. This too is not dispassion.

A more truthful practice begins with 止. You pause. You feel the pressure in the chest and the restless reach of the mind without buying, scrolling, or composing a philosophy about it. Attention becomes steady enough for the craving to be experienced as an event rather than as a command.

觀 then examines the event. The image was selected to capture attention. The pleasurable feeling arose through conditions. The fantasy changes from moment to moment. “Success” is assembled from memories, social comparison, fear, and recognition. No apartment can guarantee the permanent self-confirmation being demanded of it. This does not prove that apartments are bad. It reveals that the promise projected upon this one is structurally impossible to fulfill.

If the grasping relaxes, you may still decide that your family genuinely needs more space. You can compare costs, discuss priorities, save money, or decide against moving. Functional intention remains. What weakens is the demand that possession establish the self. That distinction is where dispassion becomes intelligible in ordinary life.

The same walk-through applies in an intimate relationship. A message from one’s partner produces pleasant feeling; recognition supplies “I am loved.” Craving then adds, “This person must always reassure me in this particular way.” When the expected message does not arrive, anxiety and anger emerge. The problem is not affection. It is the attempt to turn a conditioned human being into a permanent guarantee against insecurity.

Freedom from craving would not make the relationship cold. It could make love less extractive. One can care, make commitments, express needs, and feel grief without treating the other person as property or as machinery for continuously producing a preferred self-state. In practice, this freedom normally develops by degrees. The fulfilled 無欲界 named by the texts is much stronger than an occasional moment of relational maturity.

Parenting offers another example. A parent sees a child’s examination result. Recognition identifies the mark; feeling may be pleasant or painful. Craving appropriates it: “My child’s achievement proves that I am a good parent,” or “My child must become what I failed to become.” Under the banner of care, the child is recruited into the parent’s identity.

To cultivate dispassion here does not mean ceasing to guide the child. It means seeing and loosening the possessive hunger embedded in the guidance. The parent may then respond more precisely: Does the child need encouragement, structure, rest, tutoring, or simply to be heard? When self-confirmation no longer dominates, care can become more responsive to the actual child.

At work, the same mechanism can hide inside ambition. Completing a difficult project requires motivation, planning, and sustained effort; these are not automatically sensual greed. But when praise becomes “I must be admired or I am nothing,” wholesome diligence has become entangled with appropriation. A practitioner does not have to resign or sabotage excellence. The investigation concerns the bondage within excellence: what happens when credit goes elsewhere, results change, or the carefully maintained professional identity is threatened?

AI and recommendation algorithms offer a useful contemporary comparison. Such systems can estimate which stimuli are likely to prolong engagement, and digital platforms can repeatedly present objects correlated with clicking, purchasing, outrage, or comparison. This makes the conditioning of appetite unusually visible. But an algorithmic description is not equivalent to the Buddhist analysis of craving, and present neuroscience does not settle the Buddhist questions of liberation, non-self, karma, or nirvāṇa. Scientific accounts can illuminate behavioral and neural conditions; they neither prove nor disprove the full soteriological claim. 無欲界 concerns release from appropriation and bondage, not merely a change in measurable engagement behavior.

Across all these scenes, the practical sequence is similar:

1. Distinguish the object from the mind’s grasping of it. 2. Distinguish pleasant feeling from the demand that pleasure continue. 3. Notice the construction of “I,” “mine,” and “what will complete me.” 4. Use calming so that craving can be known without immediate obedience. 5. Use insight to see its conditioned arising, instability, cost, and lack of ownership. 6. Do not mistake a quiet episode for the destruction of the latent disposition. 7. Let repeated disenchantment mature into dispassion, rather than converting desire into self-hatred.

This walk-through describes cultivation; it should not be confused with claiming the final attainment. The classical term names the completed release toward which these smaller acts of clear seeing are directed.

Why contemporary people need it

Contemporary culture is skilled at converting nearly every human vulnerability into an appetite. Loneliness becomes a subscription; insecurity becomes a product category; boredom becomes an endless feed; professional anxiety becomes personal branding; affection becomes a demand for continuous digital confirmation. The market does not create every form of craving, but it can study, stimulate, and monetize dispositions already present in the mind.

The teaching of 無欲界 is radical because it does not merely ask how to obtain better objects. It asks why the mind assigns objects a task they cannot perform: making a conditioned self permanently complete.

Ordinary prudence says, “Choose desires carefully.” Buddhist dispassion goes further: observe how craving constructs the desirer. The coveted object and the imagined owner arise together in a story—“When I possess that, I will finally be this.” Because both object and identity are conditioned and unstable, the promised settlement repeatedly fails. Satisfaction may occur, but it cannot bear the weight of permanence. Craving then renews itself, often by blaming the object and selecting another one.

This does not make pleasure sinful. It makes pleasure too fragile to serve as an ultimate refuge. Nor does it deny social problems. Poverty, exploitation, loneliness, and unsafe working conditions are not imaginary simply because craving operates in relation to them. Material conditions may need material remedies. The point is that even necessary action can be carried out without imagining that possession, status, victory, or control can furnish an unconditioned ground for the self.

Contemplating 無欲界 also nourishes equanimity. If the possibility of non-clinging is kept in view, a practitioner need not obey every attraction or panic at every loss. Experience can be met with greater balance because attraction and aversion are no longer treated as final verdicts. This is why the *Saṃyukta Āgama* presents reflection on non-desire as “food” for the awakening factor of equanimity.

Most importantly, 無欲界 has a precise place on the path of liberation. It is not a lifestyle preference for minimalism, a personality type with low appetite, or a technique for increasing productivity. It belongs to the 出世道, the supramundane path leading beyond bondage. Cultivating disenchantment exposes the unreliability of conditioned appropriation. Cultivating dispassion releases the thirst that keeps appropriation going. Cultivating cessation carries the movement toward the ending of the conditioned basis. In the *Yogācārabhūmi*’s sequence, these are related respectively to 斷界, 無欲界, and 滅界.

Thus the teaching does not end with “want less and feel calmer.” Its horizon is the ending of ignorance, craving, and the compulsive production of suffering. 無欲界 is a “gate to the deathless” because it marks a condition in which the mind is no longer compelled to seek its security in what arises and passes away.

Common misunderstandings and clarifications

“無欲界 means having no goals.”

No. It excludes bondage through 欲貪, not every intention, decision, or wholesome aspiration. The path itself requires energetic aspiration. One may study, work, protect others, cultivate meditation, and seek awakening. The relevant question is whether intention is guided by wisdom or driven by possessive thirst.

“It means repressing sexual desire.”

That is much too narrow. Sexual appetite can be one expression of sensual greed, but 愛欲 and 欲貪 are not confined to sexuality. Wealth, food, praise, comfort, status, views, relationships, identity, and continued existence can all become sites of craving. Moreover, repression is not uprooting: an impulse forced out of awareness may remain potent as a latent disposition.

“It means the body and senses stop functioning.”

No. The texts define 無欲界 through the ending of craving, not through the destruction of sensory capacity. An object may be seen and a pleasant feeling may occur without possessive appropriation. Freedom is located in the absence of binding greed, not in sensory blankness.

“It is simply a calm meditative state.”

No. Concentration can quiet active desire while its latent tendency survives. The classical account requires more than temporary non-arising. Calming must be joined with insight, and complete dispassion includes the irreversible ending of the underlying disposition.

“It means becoming indifferent to people.”

No. Equanimity is not emotional neglect. Craving asks another person to stabilize “me” and “mine”; compassion responds to that person’s actual suffering. Less possessiveness can make care steadier, because care no longer depends entirely upon receiving pleasure, obedience, gratitude, or reassurance in return.

“It is the same as 欲界, the desire realm, only with fewer pleasures.”

No. 欲界 is a domain of conditioned existence associated with sensual desire. 無欲界 is a sphere of liberation defined by the ending of desirous craving. Nor should it simply be equated with 色界, the form realm: transcending coarse sensuality or attaining refined meditative existence is not, by itself, the final destruction of craving.

“It is another name for nirvāṇa, so all distinctions are unnecessary.”

The concepts are intimately related but the supplied sources preserve their names and functions. The *Yogācārabhūmi* lists 無欲界 alongside the nirvāṇa element with a remaining basis and the nirvāṇa element without a remaining basis, and says that abiding in 斷界 and 無欲界 brings one “near the two nirvāṇas.” It would therefore be careless either to sever 無欲界 from nirvāṇa or to erase every distinction between them.

“Any moment in which I do not want something is 無欲界.”

No. Desire may be absent because the object is unavailable, appetite is temporarily satisfied, attention has moved elsewhere, or the mind is suppressing it. The fulfilled meaning entails the distancing from all relevant sensual greed and, at its completion, the destruction of the latent tendency so that it will not arise again.

“Disenchantment means deciding that the world is disgusting.”

No. 修厭 is not a command to cultivate depressive contempt. It is the clear loss of fascination that follows from seeing the limitations of conditioned things. A mirage need not be hated once it is recognized as a mirage; it simply ceases to deceive. In the same way, dispassion is not hostility toward experience but freedom from asking experience to provide what it cannot provide.

“Modern psychology or neuroscience has proved this teaching.”

No. Research into habit, reward learning, attention, and compulsive behavior may provide illuminating parallels. It can help explain why cues intensify wanting or why repeated behavior becomes difficult to interrupt. But such parallels are limited. Scientific models work with operational measurements and remain open to revision; they do not by themselves establish the Buddhist account of final liberation. Analogy can support understanding, but it must not be turned into identity or proof.

The heart of 無欲界 is therefore neither self-denial nor the manufacture of a desireless personality. It is the end of a particular captivity: the mind’s insistence that something conditioned must be acquired, prolonged, controlled, or made “mine” in order for the self to be secure.

At first, practice gives small foretastes of this freedom: an attraction is felt without being obeyed, praise is enjoyed without being possessed, a loss is grieved without turning grief into a permanent identity. But the classical term points beyond these temporary openings. It names the completed sphere of release in which craving has lost not merely an opportunity, but its root and its claim upon the mind.

Canonical EntryAI-generated

一、定义与核心要义

「無欲界」(akāma-dhātu)指断除爱欲、远离欲贪而成就的解脱或离系境界。《雜阿含經》直接以「斷除愛欲,是無欲界」界定其义,并将它与断界、灭界并列为「諸解脫界」;其中断一切行名断界,断除爱欲名无欲界,一切行灭名灭界。三界分别从所断、所离与所灭的内容表述解脱,无欲界的核心专在爱欲之断除。

《瑜伽師地論》则将无欲界列入出世道修习所成的五种「離繫品界」,说明「修道所斷諸行斷故,名無欲界」,又以「所有欲貪皆遠離故,名為無欲」解释其名称。依此表述,无欲并非仅指一时不起欲念,而是修道所断诸行之断及欲贪之远离。

二、主要阐述

《雜阿含經》把无欲界置于止观俱修的修行脉络中。阿难先后请问上座、五百比丘及佛:比丘独处于空处、树下、闲房时,应专精思惟何法。三者均答应修止、观:止多修习终成于观,观多修习亦成于止;圣弟子止观俱修,便能获得断界、无欲界、灭界等诸解脱界。经中以「同法、同句、同義、同味」说明佛与弟子所说相应,显示无欲界是止观修习所关联的解脱成果,而非孤立的名相。

无欲界又是培育舍觉分的思惟内容。《雜阿含經》称舍觉分之「食」有断界、无欲界、灭界三种;思惟此三界,能使未生的舍觉分生起,也能使已生者再生、增广。因此,无欲界既是断欲所得之界,也在七觉分的修习中发挥所缘与资助作用。

《瑜伽師地論》进一步按修习次第配置三界:断界对应「修厭」,无欲界对应「修離欲」,灭界对应「修滅」。尚未证得无欲界而为证得精勤修习,即称「於諸行修離欲」。在菩提分法中,行者未得无欲界而正希求时,称为「依離欲」;它与未得断界时的「依遠離」、未得灭界时的「依於滅」相对,表明无欲界既是所求的离系境界,也是修习觉分所依止、所回向的目标。

就修证圆满而言,《瑜伽師地論》说已得定者修无我相应正见,依断界及无欲界而令一切菩提分法圆满;依无欲界,于应知、应断、应证、应修之事,皆达到「已知、已斷、已證、已修」。其内容包括断除所依无明及能依有爱,证得明净智与烦恼解脱,并完成奢摩他、毗钵舍那的修习。

本论还称无欲界为「妙甘露門」。行者为断除不正寻思与不正想,善住念住,修无相心三摩地;此种对治须由猛利乐欲方能成办。修习者克证无相心定,安住断界及无欲界,由此「近二涅槃」,即接近有余依、无余依涅槃。

对于欲贪如何寂静,《瑜伽師地論》列举不净、苦、无我、系念多修厌离及随眠无余永灭五种因缘。前四使欲贪现行寂静,第五使其随眠永断、未来不复生起。这一论述从现行与随眠两面说明欲贪远离,而圆满的离欲包含随眠的永断。

三、不同部类与译本的表述差异

《雜阿含經》使用的固定名称是「無欲界」,释为「斷除愛欲」;所据材料未见此处改称「離欲界」。经中的「欲界」与「無欲界」必须区分:前者是偈颂所说应当晓了并由之出离的境域,后者则是断除爱欲所得的解脱界。

《瑜伽師地論》同样使用「無欲界」,但以论典的分类语言称其为五种「離繫品界」之一,并从「修道所斷諸行斷」及「所有欲貪皆遠離」两面立义;同时以「修離欲」「依離欲」表示趋向或求证无欲界的修习,而没有以这些修习名称取代「無欲界」这一界名。

两部材料均作「無欲界」,所据小结未提供同经异译本的名称分歧。《雜阿含經》着重「斷除愛欲」及诸解脱界;《瑜伽師地論》则增加「修道所斷」、离系品界、修离欲与依离欲等分判。此处仅并列记录各自用词,不据此裁定其义理高下。

四、与相关概念的关系

无欲界与断界、灭界共同构成相邻而有别的解脱表述。《雜阿含經》以断一切行、断除爱欲、一切行灭分别说明三界;《瑜伽師地論》则以见道所断诸行之断为断界,以修道所断诸行之断为无欲界,以所依之灭为灭界,并分别联系修厌、修离欲、修灭。

无欲界还与欲界、色界及涅槃相关。《雜阿含經》偈颂说应晓了欲界、色界,舍一切有余而得无余寂灭;又说从欲界出、超逾色界,勤修正方便,断除一切爱,使一切行灭尽。偈中虽未直接出现「無欲界」,其「斷除一切愛」与无欲界的定义相应。《瑜伽師地論》则将无欲界与有余依、无余依涅槃界同列于五种离系品界,并说安住断界、无欲界者「近二涅槃」,但仍分别保留这些界名。

五、代表性原文引用

《雜阿含經》:「斷除愛欲,是無欲界。」

《瑜伽師地論》:「修道所斷諸行斷故,名無欲界。」又说:「所有欲貪皆遠離故,名為無欲。」

《瑜伽師地論》以未得而求证者为「於諸行修離欲」,并在菩提分法中称为「依離欲」。

《瑜伽師地論》又以无欲界为「妙甘露門」,并说安住断界及无欲界者「近二涅槃」。

By SutraAI-generated

雜阿含經T0099 · 阿含部

《雜阿含經》論「無欲界」,主要置於「解脫界」之三法框架中,並與止觀修行及七覺分相聯繫。

一、無欲界為三解脫界之一。經中尊者阿難問上座:比丘於空處、樹下、閑房思惟,當以何法專精思惟?上座答以「止、觀」二法,並謂止觀俱修得「諸解脫界」。阿難追問何謂諸解脫界,上座答:「若斷界、無欲界、滅界,是名諸解脫界。」 此三法構成該經論述無欲界的核心術語組合。

二、無欲界之定義。上座釋言:「斷一切行,是名斷界;斷除愛欲,是無欲界;一切行滅,是名滅界。」 是故無欲界在此經中的確切涵義為「斷除愛欲」,居於斷界(斷一切行)與滅界(一切行滅)之間,三者由粗至細遞進:先斷諸行,次除愛欲,終歸一切行滅。

三、佛與弟子同說,印證此義。阿難依次問上座、五百比丘、佛,三方所答「同法、同句、同義、同味」,佛亦印可止觀俱修得斷界、無欲界、滅界之說。 此敘事結構顯示該經將無欲界視為師徒共許、無有諍議的定說。

四、無欲界為捨覺分之食。經說七覺分各有其「食」(滋養因緣),其中捨覺分食為「有三界。何等三?謂斷界、無欲界、滅界。彼思惟,未生捨覺分令起,已生捨覺分重生令增廣」。 是故思惟無欲界等三解脫界,能滋養令捨覺分生起增廣,無欲界於此兼具所觀境與道糧之雙重功能。

五、偈頌中的欲界超越。經中偈頌云:「曉了於欲界,色界亦復然,捨一切有餘,得無餘寂滅」;又云:「知從欲界出,超踰於色界,一切行寂滅……斷除一切愛,一切行滅盡,知一切有餘,不復轉還有」。此二偈以「欲界」「色界」為所超離之對象,以「斷除一切愛」為實踐內容,與散文部分「斷除愛欲,是無欲界」之定義相呼應。

術語形式:該經一律以「無欲界」稱此概念,與「斷界」「滅界」並列,合稱「諸解脫界」或逕稱「三界」——此處「三界」指斷界、無欲界、滅界三者,非指欲界、色界、無色界之三界。

瑜伽師地論T1579 · 瑜伽部

《瑜伽師地論》將「無欲界」置於出世道作意修的體系中加以界定,與斷界、滅界、有餘依涅槃界、無餘依涅槃界並列為「五離繫品界」。其核心定義為:「修道所斷諸行斷故,名無欲界」——即見道以後,修道位中所當斷之諸行已斷,此斷所顯之境界即名無欲界;與斷界之「見道所斷諸行斷」形成次第對舉。論中進一步以「於無欲界所有欲貪皆遠離故,名為無欲」揭示其內在實質:無欲界並非另有一實體可得,而是欲貪徹底遠離之狀態。

在修行面向上,論以「未得為得」的勤修模式說明無欲界之實踐意義:「於無欲界未得為得勤修習故,名於諸行修離欲」。此與斷界之「修厭」、滅界之「修滅」三者並行,構成出世道作意修的三重功夫。於覺分修習中,論更以「未得無欲界,於無欲界正希求時,名依離欲」標出行者尚未證得而正向希求之階段定位。

論中又將斷界與無欲界合稱為「二界妙甘露門」,謂修習無相心三摩地時能剋證此二界,「安住此者近二涅槃,未於今時一切皆得」——即住於斷界、無欲界者已鄰近有餘依與無餘依二涅槃,然尚未一切圓滿。此處顯示無欲界在證量上屬修道位之關鍵階段,已超欲貪而未究竟寂滅。

於已得定之補特伽羅,論說其「依其斷界及無欲界,與彼一切菩提分法皆共圓滿」,並謂「依無欲界,於彼一切已知、已斷、已證、已修」。此表明無欲界非僅消極之離貪,而是菩提分法圓滿所依之積極基礎:所依無明與能依有愛已斷,所依明淨智與能依解脫煩惱斷已證,奢摩他與毘鉢舍那已修,皆依無欲界而成就。

就欲貪之對治而言,論於前文詳辨貪欲生起之五因(淨妙想、欣樂樂、有情想、猛盛貪、隨眠有餘未盡)及寂靜之五因(思惟不淨、思惟苦、思惟無我、繫念修厭離、隨眠無餘永滅),並分「現行寂靜」與「永斷隨眠當來不起」二種寂靜。無學者「下上貪斷,於一切分已得安隱」,即三界修斷我慢永斷之果位,可視為無欲界所顯離欲之究竟相。又論中辨析欲愛、色愛、無色愛三界愛之差別,謂「若生欲界,悕求欲界後有者……諸所有愛,是名欲愛」,為理解「無欲」所離之「欲」提供了所治對象的明確界定。

總之,《瑜伽師地論》以「修道所斷諸行斷」為無欲界之體性定義,以「欲貪皆遠離」為其實質內涵,以「修離欲」為其功夫入口,以「近二涅槃」為其證量定位,以菩提分法圓滿所依為其功用,構成一套層次分明之無欲界論述。

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