Dharma · AI Companion

現法樂住

dṛṣṭadharma-sukhavihāra

于现世安住禅定之乐。AI-generated

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

A Contemporary ReadingAI-generated

What This Concept Is About

In the context of modern people, "happiness" is often endowed with a verb-like quality of outward seeking: one must possess a trip, a successful promotion, a lavish meal, or an endless stream of fresh stimuli on a screen before the cardiovascular system secretes a fleeting dose of dopamine. Yet the 现法乐居 (dṛṣṭa-dharma-sukha-vihāra, "joyful abiding in the present life"; also frequently rendered in the Āgama scriptures as 现法乐住, 现法喜乐住, or 现法安乐住) recorded in ancient Indian Buddhist texts offers a diametrically opposed paradigm of life.

Breaking down the term literally, 现法 (dṛṣṭa-dharma) refers to the present moment, this very life, the here-and-now seen with one's own eyes — not a vague afterlife or an imagined future; 乐 (sukha) means the ease and joy that is free from all oppression, cool and untroubled; 居 or 住 (vihāra) signifies the abode and state in which the mind is stably and permanently settled. Taken together, 现法乐居 means: through cultivation practices such as meditative concentration (禅定, dhyāna), moral discipline (持戒, śīla), mindfulness (正念, smṛti), and wisdom (智慧, prajñā), the practitioner, within the present lived experience, liberates the mind from the burning of greed, aversion, and delusion (贪嗔痴, rāga, dveṣa, moha), and personally experiences a state of purity, stability, and joy.

To grasp this concept accurately, one must by no means narrow it to "worldly entertainment" or "passive escapism"; one must examine the three core layers and strict boundaries that classical treatises and scriptures assign to it:

1. Structural content: with 戒 (śīla, "moral discipline") as the foundation, 增上心 (adhicitta, "higher mind") as the substance, and 无恼 ("absence of affliction") as the characteristic * Moral discipline (戒律; 尸赖, śīla) as prerequisite: Classical literature particularly emphasizes the causal connection between "possessing complete moral discipline" (学具戒) and 现法乐居. One who does not observe the precepts, even dwelling deep in a cool mountain forest, will still generate inner heat and distress from guilt, remorse, or wandering thoughts, and the mind will not settle; only by guarding pure moral conduct, with no inner debt, can one successively give rise to "joy, delight, calming of the body, felt ease, and mental concentration" (欢悦、喜、止身、觉乐、心定), and from there see and know things as they truly are. * 增上心 (adhicitta, "higher mind"; meditative concentration; the four higher minds, 四增上心) as the core experience: In the 《中阿含经》 (Madhyama-āgama, "Medium-Length Discourses"), 现法乐居 is almost always tightly bound to 增上心 or the 四增上心. Here 增上心 refers to elevated mental states that transcend the ordinary scattered mind (such as the four dhyāna absorptions, 四禅定). Through meditative concentration, the mind departs from sensual desire and unwholesome states, giving rise to extremely deep stability and the joy of concentration. * The cool state of "不苦、不碍、不恼、不热" (not painful, not obstructed, not afflicted, not feverish): Unlike the worldly "pleasure of heat and vexation" that depends on external stimulation, the characteristic of 现法乐居 is what the 《杂阿含经》 (Saṃyukta-āgama, "Connected Discourses") describes as "not painful, not obstructed, not afflicted, not feverish". It is not the ecstasy of surging emotion, but a coolness in which body and mind are utterly transparent, free from any sense of pressure or burden.

2. Universality across all levels: from lay householders to arhats and even the Tathāgata The general public often mistakenly assumes that this elevated mental state is the privilege of monastics or mountain hermits, but the scriptures clearly delineate its broad boundaries: * The 现法乐居 of lay disciples: Lay white-clothed disciples, by practicing the "eight Dharma methods of the household life" (居家八法, such as skillfully establishing one's livelihood, right livelihood for self-support, pure faith, complete moral discipline, and generosity), or by recollecting the Saṅgha (念僧, turning toward the assembly of the Tathāgata) and recollecting moral discipline (念戒, self-recollection of śīla) so that evil desires and sorrow are extinguished and the mind becomes calm and gives rise to joy, can attain "增上心,现法乐居" (the higher mind, joyful abiding in the present life), and can even thereby realize the fruit of stream-entry (须陀洹果, sotāpanna, the first fruit). * The exemplification of saints and the Tathāgata: It is highly significant that even at the stage of the arhat (阿罗汉) — one who has exhausted all defilements, with nothing further to seek or realize — or even the Tathāgata (如来), 现法乐居 still plays a crucial role. Although the Buddha's merits are already complete, he still "dwells in a place without concerns, beneath trees in mountain groves... following along in seated meditation" (住无事处、山林树下……随顺燕坐); one of its purposes is precisely "for the sake of his own 现法乐居" (为自现法乐居故), and the second is to compassionately regard sentient beings of later generations, causing them to follow suit. Likewise, arhat monks cultivate the 四念处 (four establishments of mindfulness, smṛtyupasthāna), in part precisely to maintain 现法乐住 within the present life.

3. External manifestation: an exquisite state of body-mind unity 现法乐居 is by no means the dullness of a dead tree or cold ashes. Classical scriptures record that Buddhist disciples who attain 现法乐居 display, in both physiology and spiritual bearing, the exquisite state of "乐行端正,面色悦泽,形体净洁,无为无求" (walking joyfully and upright, complexion radiant, body pure and clean, without striving and without seeking). This serenity and composure radiating from within outward can even draw sincere admiration from worldly kings.


A Walkthrough in Daily Life

To keep 现法乐居 from becoming an abstract dogma, let us set aside the most familiar daily scene of a modern person — the evening rush-hour commute and post-overtime nightlife — and, strictly in accordance with the classical definitions, walk through the true mapping of the mind between "worldly heat and vexation" and 现法乐居.

Scene Mapping: From "the Stimulus of Scrolling a Phone" to "the Coolness of 现法乐居"

* Step One: Boundary clarification — this is NOT 现法乐居 (where the general public most easily mis-maps) At nine in the evening, after a day of high-intensity overtime, you board the subway exhausted. To reward yourself, you open your phone and start scrolling short videos and shopping apps, or you decide to get off the train and eat a heavy late-night barbecue. At that moment, the nervous system receives intense stimulation, and you feel brief relaxation and pleasure. * The mis-mapping point: Many people take this "entertainment and enjoyment after unloading work pressure" as "present-moment happiness (现法乐)". * Doctrinal analysis: In Buddhism this is called "sensual pleasure" (欲乐) or "stimulus pleasure" (刺激乐). Its essence is heat and vexation driven by "lack and compensation." The dopamine stimulation of scrolling short videos is accompanied by information overload and the dispersal of attention; the taste stimulation of barbecue is subsequently followed by the burden on the stomach and the heat and vexation of the body. Its foundation is the burning of craving; once the stimulus is removed, one sinks into even deeper emptiness and anxiety. It completely lacks the characteristics of "not painful, not obstructed, not afflicted, not feverish".

* Step Two: A walkthrough of a lay disciple's 现法乐居 (based on moral discipline and recollection of discipline / recollection of the Saṅgha) Now let us switch to a different way of responding: 1. The protection of moral discipline (自念尸赖, self-recollection of śīla): At work, you do not tell lies, do not seize credit for others' achievements, do not stir up discord behind people's backs (complete in the precepts of speech and bodily action). When you step onto the subway, there is no hidden unease or remorse arising from deception or a guilty conscience (无愧、无悔, without shame and without regret). 2. Right livelihood and restraint (the eight household Dharma methods and recollection of purity): You turn off social media saturated with anxiety and temptation, and abide in the grounded sense of supporting yourself through an upright profession (正命自活, right livelihood for self-support). You begin to recollect in your mind those sages who possess pure wisdom and are free from greed, aversion, and delusion (念僧 / 攀缘如来众, recollection of the Saṅgha, turning toward the assembly of the Tathāgata). 3. Mind-and-breath co-arising and the arising of bodily and mental joy: As craving and sorrow are extinguished, a "calm and joy" (靖与喜) rising from the depths of the mind begins to permeate. You feel the tightened shoulders and neck naturally loosen and sink, the sense of bodily pressure disappears (止身、觉乐, calming of the body, felt ease), and body and mind manifest a relaxed state of "面色悦泽、形体净洁" (complexion radiant, body pure and clean). This sweet state — which does not depend on external consumption or stimulation, but naturally overflows from inner purity and stability — is the lay disciple's 现法乐居.

* Step Three: A walkthrough at the higher and saintly levels (based on the four establishments of mindfulness and meditative concentration) If you further cultivate the 四念处 (four establishments of mindfulness): * In the busy, noisy subway car, you bring your attention back to the awareness of the breath (身念处, contemplation of the body), or you observe the body's fatigue and the mind's ups and downs as they actually are, without any resistance or clinging (受念处、心念处, contemplation of feelings, contemplation of mind). * At this point, the noisy external environment no longer constitutes an obstruction to the mind (不碍, unobstructed), and inner restlessness is replaced by coolness (不热, not feverish). Even in the midst of the most crowded whirlpool of the mundane world, your mind possesses a "place without concerns" (无事处) and "peaceful, secure joy" (安隐乐). This is the miniature manifestation in contemporary life of the 现法乐住 maintained by arhat monks through the 四念处.


Why Contemporary People Need It

The spiritual predicament of contemporary people stems to a large extent from a mode of existence characterized by "future discounting" and "external dependence."

We are accustomed to anchoring ease and joy in the future: "It will be fine once I get promoted and a raise," "It will be fine once I buy a big house," "It will be fine once the weekend or holiday arrives." Under this logic, the "present" is reduced to a tool and a sacrifice on the way to the future; the present is always anxiety, endurance, and lack. At the same time, modern commercial civilization manufactures an endless supply of "consumption-type happiness," binding happiness to external material goods. To obtain brief stimulation, people must invest in ever more intense rat-racing and depletion, falling into a vicious cycle of "anxiety—consumption—more anxiety."

Introducing a comparison with AI and modern neuroscience can help us understand this predicament more deeply: From the perspective of brain science and algorithmic life, modern internet algorithms are essentially a mechanism for precisely manipulating the human dopamine reward circuit. Through uncertain feedback (such as the bottomless recommendation feed, the number of likes), they induce inner "craving and clinging." The modern person's nervous system is chronically in a state of high sympathetic arousal — which in Buddhist terms is precisely the typical "heat" (热) and "vexation" (恼). The limitation of the scientific community lies in the fact that, although neuroscience can observe, through functional magnetic resonance imaging (fMRI), the suppression of the default mode network (DMN) and the activation of the parasympathetic nervous system in meditators entering deep meditative absorption, science to this day cannot fully reduce or explain, through material indicators, the subjective quality (Qualia) of "self-generated joy without seeking" and "liberation experience," much less provide humanity with a complete program of life liberation — encompassing ethics (戒, śīla), concentration (定, samādhi), and insight (慧, prajñā) — for escaping the shackles of desire.

The wisdom of 现法乐居 is precisely an antidote for contemporary people:

1. Breaking the "afterlife/future promise" and reclaiming sovereignty over the present life 现法乐居 places extreme emphasis on 现法 (the present). It tells contemporary people: liberation and ease do not require waiting for any external condition to be assembled, nor do they require entrusting oneself to a distant future. Through present-moment restraint and purification, every here-and-now can be a stable abode.

2. Shifting from "extractive happiness" to "internally generated peace" Worldly happiness requires consuming resources and depending on external conditions (when conditions are complete there is joy; when conditions disintegrate there is suffering); 现法乐居, by contrast, is a "joy without seeking" (无所求乐) and a "joy of desirelessness" (离欲乐). It does not depend on massive material consumption; it requires only inner purity and concentration. This ease is self-sufficient and does not collapse with violent fluctuations of the external environment.

3. Providing a sustainable system of physical and mental restoration For contemporary people under high pressure, 现法乐居 is not only a state of cultivation and realization, but also an extremely sophisticated mechanism for bodily and mental reconstruction. By severing, through moral discipline, the depletion caused by unwholesome deeds and guilt, and by interrupting, through mindfulness and meditative concentration, mental scattering and inner friction, body and mind naturally recover their purity and abundant vitality.


Common Misreadings and Clarifications

In understanding and practicing 现法乐居, contemporary people are highly prone to the following typical misreadings, which must be strictly clarified:

* Misreading One: 现法乐居 is "hedonism in this life" or "the present moment is all; carpe diem" * Clarification: Worldly "carpe diem" uses indulgence and the satisfaction of greed, aversion, and delusion as its means; its essence is heedlessness (放逸), followed by the sinking of body and mind and ignorance (heat and vexation, and suffering in later lives). 现法乐居, by contrast, is premised on "complete moral discipline (尸赖, śīla)," "desirelessness," and "mindfulness and meditative concentration". It is the cool joy that arises from desirelessness, not the stimulus-pleasure that comes from indulgence. As the scriptures say, genuine 现法乐住 enables one to "increase wholesome dharmas day and night" (昼夜增长善法) and leads to peace and liberation in later lives.

* Misreading Two: 现法乐居 is passive escapism, "lying flat" (躺平), doing nothing * Clarification: The scriptures clearly state that a lay householder who can "skillfully establish various occupations (方便建诸业, diligently building one's career), accumulate and guard what is gathered, and live by right livelihood (正命自活)," and who "undertakes right endeavors" (起正事), can equally attain "现法喜乐住" and "a mind constantly delighting in the supreme right Dharma" (常心乐于无上正法). What 现法乐居 dissolves is inner greed, anxiety, and calculation — not legitimate life activity. It is a mental state of "non-striving and non-seeking" (无为无求), not a retreat from action.

* Misreading Three: 现法乐居 is merely a transitional experience needed by beginners or ordinary people; saints do not need it * Clarification: This is a serious misunderstanding of the life of saints. Classical scriptures repeatedly emphasize that even the Tathāgata, who has nothing further to seek or realize, still enters the grove and sits in meditation "for the sake of his own 现法乐居" (自现法乐居); arhat monks whose defilements are exhausted still diligently cultivate the 四念处 to maintain 现法乐住. This shows that 现法乐居 is not merely a means of cultivation, but also the normal mode of life in which saints, within their present physical existence, manifest the liberative experience and maintain the stillness, silence, and joy of body and mind.

Canonical EntryAI-generated

一、定义与核心要义 「现法乐居」(梵语:dṛṣṭa-dharma-sukha-vihāra),在经典中亦常译为「现法乐住」,是指修行者在当下的生命(现法)中,通过禅定、持戒、正念等修行实践,所亲身体验到的安乐、清净、无恼与喜悦的住处或心境。这一概念不仅是如来与阿罗汉等圣者在证悟后,于当下生命中维持心灵寂静与喜乐的重要修持方式,也是在家与出家弟子通过实践相应法门,在现实生活中即可达成的现世安隐与清凉体验。

二、主要阐述 在阿含部经典中,对于「现法乐居」的实践主体、修持方法及具体表现,有着多角度的丰富论述: 1. 如来与圣者的示范:如来虽然已达无求无证之境,但仍选择「住无事处、山林树下……随顺燕坐」,其核心原因之一即是「为自现法乐居故」,之二则是为了慈愍后世众生,令其效仿修行。侍者阿难虽无他心智,却能准确预知并向他人宣说如来每日所行的「现法乐居」状态。此外,诸漏已尽、心善解脱的阿罗汉比丘,依然会修习「四念处」,其目的之一正是为了「现法乐住」或「现法安乐住」,这显示出它是圣者在当下生命中维持禅定喜乐的重要方式。 2. 出家比丘的修持:对于出家比丘而言,若能成就「大人八念」并获得「四增上心,现法乐居」,便能超越物质匮乏的痛苦,以粪扫衣、乞食、树下止、草座为乐,随处游行皆得安乐,且能昼夜增长善法,必得阿那含或究竟智(阿罗汉果)。 3. 在家弟子的实践:现法乐居并非出家人的专利。在家白衣圣弟子若能通过「攀缘如来众」(念僧)使恶欲与忧戚熄灭、心靖得喜,即是得「第三增上心,现法乐居」;通过「自念尸赖」(念戒)达到同样效果,则是得「第四增上心,现法乐居」。若能善护此法,可被记别为得须陀洹果。此外,若居家生活能成就「八法」(如方便建诸业、积集能守护、正命自活、净信、戒具足、惠施等),便能「现法得安隐,现法喜乐住」,并在后世同样获得喜乐。 4. 沙门与婆罗门的清凉体验:沙门与婆罗门等修行者,若能安于生命、生起不害之正想,便能达到「现法乐住」的状态,其特征为「不苦、不碍、不恼、不热」,且在身坏命终后能往生善趣。

三、不同部类与译本的表述差异 在不同的经典部类中,该概念的术语呈现与修持搭配存在细微差异: 1. 核心术语的差异:《中阿含经》(《中阿含經》)统一使用「现法乐居」这一表述;而《杂阿含经》(《雜阿含經》)则主要使用「现法乐住」,并根据语境衍生出「现法喜乐住」与「现法安乐住」等译名。 2. 与「增上心」的结合:《中阿含经》高度强调「现法乐居」与心灵升华的关联,常将其与「增上心」或「四增上心」并提,表述为「增上心,现法乐居」或「四增上心,现法乐居,易不难得」;而《杂阿含经》则多将其与「八法」或「四念处」等具体修持法门相结合。 3. 音译词的使用:《中阿含经》在论述念戒得现法乐居时,使用了音译词「尸赖」来指代戒律(如「自念尸赖」);而《杂阿含经》在类似论述中则直接使用意译词「戒具足」。

四、与相关概念的关系 1. 与持戒(具足戒/尸赖)的因果关系:获得现法乐居必须以「学具戒」为前提。不学具戒者即使住远离处,也会因诬谤戒律而无法生起欢悦、喜、止身、觉乐,导致心不定,无法如实知见;而学具戒者修行精勤,得「增上心,现法乐居」,能依次生起欢悦、喜、止身、觉乐、心定,从而如实知见。 2. 与禅定及四念处的关系:禅定具足住能使修行者「心常致喜乐」;而阿罗汉比丘修习「四念处」的目的之一,即是为了在当下生命中维持「现法乐住」。 3. 与外在显现及其他安乐的关系:获得现法乐居的佛弟子,在外表上会呈现出「乐行端正,面色悦泽,形体净洁,无为无求」的殊妙状态,令世俗君王由衷赞叹并断定其必得「增上心,现法乐居」。此外,经中还提到「起正事」能常心乐于无上正法,并以诗偈描绘了「无为安隐乐」、「不起安隐乐」、「无事亦得乐」以及「得离贪欲乐」等不同层面的安乐境界,这些均与现法乐居(住)的体验相通。

五、代表性原文引用 1. 《中阿含经》:「增上心,现法乐居」;「四增上心,现法乐居,易不难得」;如来「为自现法乐居故,亦为哀愍后世人故」;「学具戒已,便得增上心,现法乐居」。 2. 《杂阿含经》:「现法得安隐,现法喜乐住」;「安于生命,起不害想,得现法乐住,不苦、不碍、不恼、不热」;阿罗汉比丘「修四念处……为现法乐住故」。

By SutraAI-generated

中阿含經T0026 · 阿含部

《中阿含經》論述此概念時,一律使用「現法樂居」一詞,而非「現法樂住」,此為本經獨特之用語形式。全經中該詞幾乎恆與「四增上心」及「易不難得」連用,構成固定句式:「得此四增上心,現法樂居,易不難得」,意謂成就四種增上心(即四禪)後,於現世法中安住樂居,輕易可得而無困難。

一、如來自證之現法樂居。經中兩處明確記載佛陀自述住無事處、山林樹下、高巖寂靜之地隨順燕坐,其目的有二:「一者為自現法樂居故,二者為慈愍後生人故」。此二義並舉,表明現法樂居既是如來自身受用禪定之樂,亦為後世弟子樹立典範。另於阿難未曾有法中,提及如來「晡時從燕坐起」後所行即為「現法樂居」,可見此詞在日常語境中亦指佛陀禪坐之安樂狀態。

二、成就大人八念與四增上心為因。佛告阿那律陀:若成就大人八念(無欲、知足、遠離、精勤、正念、定意、智慧、不戲),復得四增上心,則「現法樂居,易不難得」。經中更以王臣好衣、好食、好屋、好床四喻,說明得此樂居者隨心自在,如王取衣著之無礙。進一步指出,成就此法者「於二果必得其一,或於現世得究竟智,或復有餘得阿那含」,將現法樂居與現世證果直接關聯。

三、戒學為現法樂居之基礎。經中對比不學具戒與學具戒之二比丘:不學者雖住遠離處、修行精勤、得增上心現法樂居,然因誣謗世尊戒及智梵行者,遂不生歡悅、不止身、不覺樂、心不定,終不見如實。學者則不誣謗三處,由歡悅生喜、止身、覺樂而心定。此處顯示現法樂居非孤立之定境,須以戒清淨為前行,否則定樂退失。

四、白衣聖弟子亦得現法樂居。經中佛告舍梨子:白衣聖弟子念如來、念法、念僧、念尸賴(戒),各得增上心,「現法樂居,易不難得」。此處將現法樂居之範圍由出家眾擴及在家聖弟子,以四不壞淨(佛、法、僧、戒)為所緣,心靖得喜,惡欲與不善法即滅。

五、外相驗證。頻婆娑羅王觀察佛弟子「樂行端正,面色悅澤,形體淨潔」,推知其「得離欲,得增上心,現法樂居,易不難得」,以色身安泰為現法樂居之外在表徵。

六、偈頌中略稱「現法樂」。經末偈云「於現法樂故,亦為後世樂」,將現法樂與後世樂對舉,顯示此樂兼攝現世受用。另「受法現樂、當來亦受樂報」亦以「現樂」指稱現世所受之樂報,與現法樂居義相通而用語略簡。

綜上,《中阿含經》以「現法樂居」為標準術語,核心句式為「四增上心,現法樂居,易不難得」,涵蓋如來自證、比丘修道、白衣念處三層,並以戒學為基、四禪為體、現世證果為果。

雜阿含經T0099 · 阿含部

《雜阿含經》論「現法樂住」,用語形式頗有層次,並非單一固定詞組。經中至少出現以下幾種表述:「現法安、現法樂」、「現法樂住」(chunk:6250、6497)、「現法安樂住」、「正受現法安樂住」,以及偈頌中的「安隱樂」「安樂」(chunk:10817、10825)。其中「正受」一詞標明此樂與三摩地(等至)直接相關,是《雜阿含》特有的修辭組合,他經多徑稱「現法樂住」而不加「正受」。

就適用對象而言,本經將此概念展開為在家與出家兩個面向。在家面向見於欝闍迦婆羅門問法一經:佛說在家人以四法得「現法安、現法樂」,即方便具足(精勤工巧業處營生)、守護具足(如法所得錢穀不令王賊水火所奪)、善知識具足(不落度、不放逸、不虛妄、不凶險之知識能令憂苦不生、喜樂不失)、正命具足(財物等入等出,稱量周圓)。此處「現法安樂」偏重世間生活的安穩與秩序,尚未涉及禪定。

出家面向則以禪定為核心。經中明言比丘「得四增心法,正受現法安樂住,不勤而得」。「四增心法」即四靜慮(四禪),是《雜阿含》對禪定的慣稱;「不勤而得」形容已熟練者任運入定,不須勉強。偈頌進一步描繪此境:「若處不放逸,不起安隱樂」「無事亦得樂,無作亦無憂」,以「無事」「無作」點出定中無所營求的安樂特質。另一偈則云「禪定具足住,心常致喜樂」,直接將「現法樂住」的樂歸因於禪定具足。

本經另一獨特側面,是將現法樂住與不害(ahiṃsā)連結。經說沙門、婆羅門「安於生,生不害想,不捨離、不覺、不吐」,即能「現法樂住,不苦、不礙、不惱、不熱」,命終生善趣。此處以四組否定(不苦、不礙、不惱、不熱)形容樂住的身心狀態,強調離害即離熱惱,樂住不只是定中受樂,更是日常不起害念的清涼。

最值得注意的一條,是阿那律對「已漏盡阿羅漢何以仍修四念處」的回答:「不得者得,不證者證,為現法樂住故」。這表明在本經的框架中,現法樂住並非僅屬有學位的修行目標,而是阿羅漢持續修習四念處的理由之一——解脫已完成,但禪樂仍可「不得者得」,作為現世安住之用。此說賦予現法樂住一個超越功利解脫的獨立價值:它既是通向解脫的手段,也是解脫者自願安住的境界。

綜觀全經,《雜阿含》對現法樂住的論述兼具世間與出世間、在家與出家、戒(不害)與定(四增心法)多重維度,術語上以「現法樂住」「現法安樂住」「正受現法安樂住」互見,較他經用語更為豐富多變。

阿毘達磨俱舍論T1558 · 毘曇部

《阿毘達磨俱舍論》以「現法樂住」為禪定修證中核心而可退失的一層功德,與不可退的果位解脫形成嚴格對舉。

一、定義與術語形式。本論一律使用「現法樂住」四字,指於現世(現法)安住靜慮等持之樂。論中引經云「四種增上心所現法樂住」,將現法樂住繫屬於四種增上心(四靜慮)。又引經「有修等持若習若修若多所作得現樂住」,以「現樂住」為「現法樂住」之略稱。頌文則簡化為「現法樂」:「為得現法樂,修諸善靜慮」。此處「善靜慮」之「善」字,論釋云「善言通攝淨及無漏」,即有漏淨定與無漏定皆攝在內。

二、現法樂住可退,果性解脫不退——本論最核心的論述框架。論中引佛告慶喜(阿難)之經:利養等障亦能障阿羅漢,「而不說退阿羅漢果,但說退失現法樂住」。又引「不動心解脫身作證,我定說無因緣從此退」,以果性解脫為絕無退理。由此建立判準:所退者唯是現法樂住(靜慮等持),非阿羅漢果性。論中設問「如何不動法退現法樂住」,答以根本靜慮等持「要待時現前」,故有退緣。

三、「時愛解脫」與現法樂住之關係。論釋「時愛解脫」云:彼根本靜慮等持要待時方現前,故名「時解脫」;行者「為獲得現法樂住,數希現前故名為愛」。即愛著現法樂住、數數希求定境現前,正是「時愛」之得名由來。另有師說此定是「所愛味」,論中並列存之。

四、退與不退依根性而分。論云:「由利等擾亂過失,有於所得現法樂住退去自在,謂諸鈍根;若諸利根則無退失。故於所得現法樂住有退無退,故名退不退法。」鈍根阿羅漢遇利養等擾亂則退失現法樂住,利根則否,由此立「退法」與「不退法」之種性差別。論又辨「不退、安住、不動」三名之別:非練根得者名「不退」,練根所得者名「不動」,此二所起殊勝等至設遇退緣亦無退理;「安住」者但能於已住勝德中無退失,不能更引餘勝德生,設引生已從彼可退。

五、修因與所依地。頌云「為得現法樂,修諸善靜慮」,論釋謂經中但舉初靜慮者乃「舉初顯後,理實通餘」,四靜慮皆能得現法樂住。論又釋經不言「後法樂」之故:「以後法樂非定住故,謂或退墮、或上受生、或般涅槃便不住故」。此即現法樂住之「現法」限定義——唯約今生安住而言,後世之樂非決定可得,故不立名。

六、經部師立場之引述。論中記經部師說「從阿羅漢亦無退義」,並評「彼說應理」,然此「無退」之對象,論中辨析仍指果性解脫而非現法樂住——現法樂住之可退,鈍根者實有退失,此為本論自宗所許。

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