What this concept is about
In everyday language, "suffering" (苦) and "happiness" (樂) are often seen as two diametrically opposed emotional states or life circumstances: happiness is the goal to be pursued, suffering is the misfortune to be escaped. In the framework of early Buddhism, however, 苦樂 (duḥkhasukha, "suffering and happiness") is not some unshakable predetermined fate, nor a reward or punishment handed down by a deity; it is the physical and psychological sensations (受蘊, vedanā-skandha, the aggregate of feeling) produced by body and mind through the conjunction of causes and conditions. It is the driving force of the turning of life, and the core object that the practitioner must correctly cognize and transcend on the path to liberation.
To thoroughly understand 苦樂, one must grasp its precise analysis along four dimensions in the classical scriptures (such as 《中阿含經》 [Madhyama-āgama] and 《雜阿含經》 [Saṃyukta-āgama]):
1. Originative Philosophy: Thoroughly Refuting Wrong Views, Establishing "Suffering and Happiness Arise from Conditions"
In early Buddhism, the Buddha thoroughly deconstructed the then-current non-Buddhist views of suffering and happiness:
* Refuting fatalism and divine creation (《中阿含經》 [Madhyama-āgama]): The Nirgrantha outsiders (尼乾外道) and others maintained that suffering and happiness are determined by "本作" (past deeds already fixed), "合會" (combination of causes), or "尊祐造" (creation by divine protection). The Buddha challenged this: if such a view were valid, then those outsiders who in this life cultivate extremely severe ascetic practices would be implying that what they serve is evil karma and an evil deity — a logic that cannot stand in terms of dharma-principle.
* Rejecting four kinds of extreme causal theories (《雜阿含經》 [Saṃyukta-āgama]): Outsiders often debated whether suffering and happiness are "自作" (self-made, decided entirely by oneself in the present), "他作" (other-made, decided by external circumstances or other people), "自他共作" (made by both self and other), or "非自非他無因作" (made by neither self nor other, causeless — random and fortuitous). The Buddha and his disciples (such as the monk 浮彌) judged these four metaphysical debates as "無記" (avyākṛta, "indeterminate" — unanswerable questions not worthy of response), and clearly stated: suffering and happiness arise from conditions (苦樂從緣起生).
* The mechanism of dependent origination: The arising of suffering and happiness depends on "六觸入處" (ṣaḍāyatana, the six sense bases). That is: the eye/ear/nose/tongue/body/mind (六根, ṣaḍ-indriya, the six sense faculties) contact form/sound/smell/taste/touch/dharma-objects (六境, ṣaḍ-viṣaya, the six sense objects), giving rise to eye-consciousness up through mind-consciousness (六識, ṣaḍ-vijñāna, the six consciousnesses). When faculty, object, and consciousness — these three — converge, "觸" (sparśa, "contact") arises; with contact as cause and condition, inner sensation then arises — whether painful, pleasant, or neither painful nor pleasant. Once the six sense bases and 名色 (nāmarūpa, "name-and-form") are extinguished without remainder, the reactive mechanism of suffering and happiness is likewise "extinguished without remainder".
2. Reversal of Values: The Inverted Definitions of "Freedom" between the Worldly and the Renunciant
《中阿含經》 reveals that the worldly ordinary person and the renunciant practitioner hold diametrically opposite definitions of "suffering/happiness" and "freedom":
* The worldly householder's view: takes "not being free as suffering, being free as happiness". For the worldly person, when wealth, property, and social standing do not grow, and one is controlled by others — that is not being free, and from it arise worry, suffering, and distress. Conversely, when assets are abundant and one can deploy resources according to one's own wishes — that is freedom and happiness.
* The renunciant's liberative view: takes "being free as suffering, not being free as happiness". Here, "being free" (自在) means acting willfully and without restraint — if one's conduct follows one's desires (欲, craving), aversion (恚, ill will), and delusion (癡, ignorance), it may appear to be doing as one pleases, but in essence one is enslaved by the defilements, and so it is genuine worry and suffering. "Not being free," by contrast, means self-restraint — not following desire, aversion, or delusion. Although this breaks one's habitual inertia, inwardly one gains true purity and joy.
3. Structural Classification and the Four Kinds of Feeling-Experience across Time
《中阿含經》 further divides sensation into bodily pleasure, mental pleasure and bodily pain, mental pain, and, spanning the temporal dimensions of the present life and the future life, sets forth the "四種受法" (the four kinds of feeling-experience):
1. Pleasure now, painful retribution in the future: At present one obtains physical and mental pleasure, but the means involve evil deeds such as killing living beings and holding wrong views. The scripture compares this to "阿摩尼藥" (a medicine that appears beautiful in color, fragrance, and taste, but is in fact laced with deadly poison) — once swallowed, it eventually erupts in the abdomen, inflicting fatal harm.
2. Pain now, pleasant retribution in the future: At present, one endures the physical and mental hardship of abandoning evil, cultivating good, and upholding right views, but because of these wholesome dharmas one is able to progress toward nirvāṇa and liberation.
3. Pain now, and painful retribution in the future as well: At present one experiences anxiety and suffering through committing evil deeds, and in the future one must bear the bitter fruits of those evil deeds. The scripture sternly compares this to "eating excrement mixed with poison" — impure in the present life, and in the next life falling into utter despair.
4. Pleasure now, and pleasant retribution in the future as well: Because one abandons evil and practices good, one's mind is inwardly calm and happy, and this pure wholesome karma can lead to future well-being and liberation.
4. Cognitive Disconnect: The Ordinary Person's "Being Driven" and the Sage's "Seeing Extinction as Happiness"
《雜阿含經》 points out that the ordinary person and the sage differ fundamentally in the underlying logic of suffering and happiness:
* The underlying drive (latent tendencies): When an ordinary person experiences a pleasant feeling (樂受), they are secretly driven by the "貪使" (rāga-anuśaya, the underlying tendency of craving), giving rise to grasping and clinging; when they experience a painful feeling (苦受), they are driven by the "瞋恚使" (pratigha-anuśaya, the underlying tendency of aversion), giving rise to rejection and hatred. Ordinary people wallow in the pleasures of the world's six sense objects, yet overlook the immense suffering that necessarily erupts when these things "change, decay, and cease".
* The sage's wisdom: The sage clearly sees the transience and impermanence of worldly happiness, and therefore "sees its cessation as happiness" — the delights that worldly people crave are, in the sage's eyes, precisely the enemy of suffering; the stillness and dispassion that worldly people flee from, the sage instead regards as happiness. The wise noble disciple is able to accomplish: "樂受不放逸，苦觸不增憂，苦樂二俱捨，不順亦不違" ("In pleasant feeling, no indulgence; in painful contact, no added sorrow; both suffering and happiness are let go — neither pursued nor resisted").
A Walkthrough in Everyday Life
To avoid reducing 苦樂 to an empty philosophical concept, we can take a classic scenario of modern people in the digital age — "scrolling short videos / working overtime late at night" — and map it layer by layer through the Buddhist framework of suffering and happiness:
Scenario One: Late-Night Short Videos and Binge Eating ("Pleasure Now, Painful Retribution in the Future" and the "Tendency of Craving")
* Mapping walkthrough: Lying in bed late at night, you turn on your phone. The eye contacts the light and shadow of the screen (eye and form converging), giving rise to eye-consciousness and eye-contact, instantly bringing intense stimulation and a surge of dopamine (the arising of bodily pleasure and mental pleasure).
* Where people most commonly mis-map: People tend to think this pleasure is "given by the phone" (the outsiders' "other-made" theory), or that "I am entertaining myself by my own ability" (the outsiders' "self-made" theory). According to dependent origination, this is merely a brief physical and psychological reaction of faculty, object, and consciousness under specific causes and conditions.
* Precise classical correspondence: When you derive gratification from scrolling videos, the "貪使" (rāga-anuśaya, the underlying tendency of craving) in your mind is being quietly activated. This gratification is the "阿摩尼藥" of the scriptures — pleasant in the moment, but followed by the physical damage of staying up late, the drowsiness and self-reproach of the next day (physical and mental suffering in the present life), and the long-term fragmentation of attention and loss of behavioral control (painful retribution in the future).
Scenario Two: A Sudden Work Call Interrupts Your Day Off ("Painful Contact" and the "Tendency of Aversion")
* Mapping walkthrough: On the weekend, you suddenly receive an overtime call from your boss (ear and sound converging, giving rise to ear-contact). Your originally relaxed state of mind instantly loses control, producing intense irritation and anger (the arising of bodily pain and mental pain).
* Where people most commonly mis-map: Attributing the suffering entirely to "a terrible boss" or "bad luck" (the outsiders' "divine creation" or "other-made" theories).
* Precise classical correspondence: The stimulus (the overtime notice) itself is merely a "painful contact" (苦觸). However, when an ordinary person encounters a painful contact, they are instantly driven by the "瞋恚使" (pratigha-anuśaya, the underlying tendency of aversion), and on top of the physical pain (having to work) they add a second arrow — inner anger, resentment, and resistance (mental pain).
Scenario Three: Gritting Your Teeth to Quit an Addiction and Persisting with Exercise ("Pain Now, Pleasant Retribution in the Future" and the "Choice of Cultivation and Abandonment")
* Mapping walkthrough: You decide to put down the phone and go for a run. Muscles ache, breath is rapid (bodily pain), and your mind keeps screaming to give up (mental pain).
* Precise classical correspondence: In the practice of cultivation, not all "suffering" is to be fled from, and not all "pleasure" is to be pursued. This pain of withdrawal and self-discipline, although accompanied in the present by physical and mental refinement, is able to make "evil and unwholesome dharmas diminish, and wholesome dharmas increase". This is precisely the cultivable path of "pain now, pleasant retribution in the future".
Why Contemporary People Need It
Contemporary society is caught in a predicament where "excessive stimulation" and "chronic anxiety" coexist. Algorithmic recommendation, instant feedback, and consumerism have built a vast machine for "manufacturing pleasant feelings," while social competition and uncertainty ceaselessly manufacture "painful feelings." Modern people need the Buddhist wisdom on 苦樂 more than any previous era:
1. Breaking the algorithmic dependency and addictive structure of "happiness" Modern neuroscience and behavioral science have found that dopamine does not bring lasting satisfaction, but rather a craving for "more." This coincides exactly with what 《雜阿含經》 states — "受樂受時，為貪使所使" ("when experiencing a pleasant feeling, one is driven by the tendency of craving"). Building happiness on external stimuli (the six sense objects) is, in essence, handing over control of one's emotions to algorithms and the environment. Understanding that "suffering and happiness arise from conditions" allows us to maintain a measure of clarity when facing stimuli: sensations are merely products of causes and conditions; they do not represent a real "self," and we do not need to be led by the nose every single time.
2. Redefining "freedom" and "ease" Modern culture defines freedom as "the ease of following one's desires" — eat whenever you want, buy whenever you want, lose your temper whenever you want. But 《中阿含經》 long ago pointed out: "若行隨其欲、隨恚、癡，彼便憂苦愁慼" ("If one acts following one's desire, aversion, and delusion, one will thereby be worried, suffering, and distressed"). The happiness brought by such willfulness is extremely fragile — the moment external conditions are absent, one immediately falls into deep dis-ease and suffering. Conversely, through precepts and self-discipline, "行不隨欲、不隨恚、癡" ("acting without following desire, aversion, and delusion"), displaying a steadiness that is not swept along in the face of desire — that is genuine psychological freedom (the renunciant's "not being free is happiness").
3. Providing a decision-making framework across time dimensions (the four kinds of feeling-experience) Many of contemporary people's psychological crises come from "short-sightedness." Consumerism advocates "instant gratification" (pleasure now), yet ignores long-term financial and physical-mental deficits (painful retribution in the future). The "四受法" provides a clear set of evaluation criteria: to judge whether an action is good or bad, one does not look at whether it is painful or pleasant in the moment, but at whether it can make "evil dharmas diminish and wholesome dharmas increase". This wisdom can help modern people make rational choices between short-term discomfort (such as studying, exercising, and deep work) and long-term well-being.
*Note: Modern neuroscience and behavioral psychology, in studying addictive mechanisms and emotional regulation, have also confirmed the shaping effect of inhibiting immediate desires (delayed gratification) on the brain's prefrontal cortex. But scientific research focuses on physiological mechanisms and mental-health indicators, whereas the Buddhist view of 苦樂 concerns not only physical and mental health — its ultimate aim is the complete severance of the defilement-tendencies (craving, aversion, delusion) and the "nirvāṇic liberation" that transcends the cycle of birth and death. The two differ fundamentally in their ultimate concerns and metaphysical foundations.*
Common Misreadings and Clarifications
Misreading One: Buddhism holds that "life is all suffering," so it is a pessimistic philosophy of negativity and world-weariness?
Clarification: This is the most widespread misunderstanding of Buddhism. The early scriptures never deny the objective existence in the world of "bodily pleasure, mental pleasure" and "receiving joy and happiness in good circumstances". When the Buddha points out "suffering," it is not to plunge people into despair, but to reveal the impermanence and dependence of worldly happiness — secular pleasure clings to changeable external conditions (the six sense objects); when conditions change ("at the time of change, decay, and cessation"), happiness turns into suffering. The ultimate aim of Buddhism is not to make people pessimistic, but to offer a "path of departure" that transcends this fragile suffering-and-happiness, leading to an ultimate stillness that does not depend on any external condition (the happiness of nirvāṇa).
Misreading Two: Since "suffering and happiness arise from conditions," my suffering is all caused by the environment and other people, and has nothing to do with me?
Clarification: This falls into the outsiders' wrong views of "other-made" or "causelessly made". Although the external "six sense objects" provide the source of stimulation, the core where suffering truly erupts lies in whether, when your inner "six sense faculties" react with "contact," the underlying "結使" (saṃyojana-anuśaya, the fetters and latent tendencies) of craving, aversion, delusion, and so forth are activated. The environment may bring a physical "painful contact," but what plunges you into prolonged mental torment (mental pain) is inner resistance and clinging. Therefore, suffering and happiness are neither purely self-made nor purely other-made, but the product of the convergence of internal causes and external conditions. Changing external conditions is certainly important, but the core of cultivation lies in guarding and restoring the inner six sense faculties.
Misreading Three: Cultivation means becoming a "cold-blooded animal," numb and indifferent, feeling neither suffering nor happiness?
Clarification: The Buddha's admonition to the monks — "莫樂莫苦" ("neither delight nor suffer") — and the scriptural "苦樂二俱捨" ("letting go of both suffering and happiness") do not at all mean physical or psychological numbness and apathy. Sages likewise have normal physical perception (they are able to be aware of painful and pleasant feelings), but the sage has accomplished "樂受不放逸，苦觸不增憂，不順亦不違" ("In pleasant feeling, no indulgence; in painful contact, no added sorrow; neither pursuing nor resisting"). The so-called "letting go" (捨) means that the mind is neither kidnapped by happiness into greed, nor provoked by pain into hatred, but maintains a calm and composed stability that does not turn with circumstances, within clear and acute awareness.