Dosha Dushya Srotas and Agni Explained

The four-part connection students miss

A viva examiner asks, “Explain the samprāpti (pathogenesis) of this disease,” and the student lists a Doṣa, a dhātu (tissue), and perhaps an affected srotas (channel). The answer sounds familiar but remains incomplete: which Doṣa became disturbed, what did it contaminate, through which pathway did it move, and what happened to Agni (the digestive and metabolic fire)?

This is the practical value of studying Doṣa, Dūṣya, Srotas and Agni together. They are not four independent headings. They describe four dimensions of one pathological event: the active disturbance, the vulnerable material, the route or field of expression, and the capacity that governs transformation and nourishment.

This article gives you a classical framework for connecting them without pretending that the Saṃhitās reduce every disease to a mechanical formula. It will distinguish what the mūla texts (root classical texts) state, how commentators clarify them, and how modern clinical correlation may help understanding without replacing Ayurvedic doctrine.

Why Doṣa, Dūṣya, Srotas and Agni matter for your exams

This framework appears in university theory papers under nidāna (diagnosis and causation), samprāpti, kriyākāla, srotas-vimāna, dhātu-pōṣaṇa and Agni. It is also a frequent viva theme because an examiner can test whether you understand disease as an interaction rather than as a memorised list of symptoms.

In AIAPGET-style questions, the tested points are often compact: the definition of dūṣya, the varieties of srotas-duṣṭi (channel disturbance), the relationship between Doṣa and Agni, the seven dhātu in order, or the difference between a dominant Doṣa and the tissue that becomes affected. A well-structured long answer usually earns marks by naming all four components and showing their sequence clearly.

What the classical texts actually establish

Charaka: disease as Doṣa–Dūṣya interaction

The Nidānasthāna of Charaka presents disease through nidāna (causes), pūrvarūpa (premonitory features), rūpa (manifest features), upaśaya (relieving or aggravating factors) and samprāpti. This structure teaches that a disease is not identified by a symptom alone; one must understand the causal process that brings the symptom into manifestation.

Charaka repeatedly uses the logic of Doṣa becoming vitiated and affecting dhātu and other bodily components. The term doṣadūṣyasaṃmūrchana is used in Ayurvedic teaching to express this coming together or pathological interaction of Doṣa and Dūṣya. The precise expression of the concept varies by textual context, so it is safer to use it as a synthesis of the classical pathogenesis model rather than claim that one formula explains every disease.

The Vimānasthāna of Charaka is especially important for srotas. Its discussion of srotas examines the channels that carry bodily materials, their roots, their normal functions and the signs of their disturbance. Charaka’s presentation makes clear that srotas are not merely hollow tubes: they are functional pathways through which dhātu and other substances undergo movement, transformation and nourishment.

The Sūtrasthāna and Vimānasthāna of Charaka also establish the importance of Agni in digestion, transformation and the maintenance of health. The Chikitsāsthāna, particularly the discussion of Grahaṇī, places impaired digestion and altered stool formation in relation to disturbed Agni. Thus, in Charaka, Agni is not just one item in a list of disease factors; it helps explain whether consumed material is properly transformed and whether the tissues can be nourished.

Suśruta: channels, tissues and structural precision

Suśruta’s Śārīrasthāna discusses the bodily structures and channels within a surgical and anatomical framework. His account of srotas is important because it gives the student a more structural and location-oriented understanding of pathways. Suśruta also discusses the roots of srotas and the consequences of injury or disturbance in those regions.

The Sūtrasthāna of Suśruta presents the Doṣa, dhātu and mala (waste products) as fundamental components of the body. Its teaching supports a distinction that students must preserve: Doṣa are regulatory principles that can become vitiated, whereas dhātu and mala are among the bodily materials that may be affected or “dūṣita” (made abnormal). The word dūṣya is therefore functional, not simply synonymous with “tissue.”

Suśruta’s Nidānasthāna describes the progression and features of diseases in a way that helps the reader connect location, structural change and symptom expression. For clinical reasoning, Suśruta is especially valuable when the question concerns a particular site, pathway, tissue injury or the consequences of damage to a channel.

Vāgbhaṭa: a compact clinical synthesis

The Sūtrasthāna of Aṣṭāṅga Hṛdaya organises the material on Doṣa, their qualities, aggravation and pacification in a concise form. Vāgbhaṭa’s presentation is particularly useful for reasoning because it repeatedly links qualities, location, movement and manifestation. The text’s Nidānasthāna and Chikitsāsthāna then apply these principles to named diseases.

Aruṇadatta’s commentary, the Sarvāṅgasundarā, and Hemādri’s commentary, the Āyurvedarasāyana, are important when reading Aṣṭāṅga Hṛdaya closely. Their explanations help students understand how a general principle is applied to a particular disease, but commentary should not be silently presented as if it were the bare statement of Vāgbhaṭa.

The Aṣṭāṅga Hṛdaya treats Agni as central to digestion and bodily maintenance and describes the familiar fourfold classification of Agni: samāgni (balanced), viṣamāgni (irregular), tīkṣṇāgni (excessively sharp) and mandāgni (weak or slow). The text also uses the tri-doṣic understanding of Agni in disease, making Agni assessment a bridge between Doṣa disturbance and impaired tissue nourishment.

Where the authorities differ

The texts do not always arrange every category with identical terminology or emphasis. Charaka’s treatment of srotas is strongly functional and physiological; Suśruta gives greater emphasis to structural and surgical anatomy; Vāgbhaṭa compresses both into a clinically usable synthesis. These are not contradictions to be erased. They are differences in emphasis, and examiners may ask precisely because students often quote one scheme as if it were universal.

Question	Charaka	Suśruta	Vāgbhaṭa
Main emphasis	Functional movement, transformation and disease process	Structural location, bodily components and injury	Concise integration of qualities, Doṣa, disease and treatment logic
Srotas teaching	Developed in the Vimānasthāna with roots and duṣṭi features	Discussed through Śārīra and structural understanding	Presented within a compact whole-body clinical framework
Agni teaching	Central to digestion, nourishment and Grahaṇī pathology	Connected with bodily function and surgical physiology	Explicitly integrated into practical Doṣa assessment
Clinical value	Explains process and samprāpti	Clarifies site and structural involvement	Helps organise bedside and examination reasoning

First principle: Doṣa is the active disturbance

Doṣa means the functional factor capable of vitiating bodily equilibrium. The three are Vāta (the principle associated with movement and regulation), Pitta (the principle associated with transformation and heat) and Kapha (the principle associated with stability, cohesion and lubrication).

Calling Vāta “movement,” Pitta “fire” and Kapha “water” is a useful entry point, but it is not sufficient for clinical reasoning. In the Sūtrasthāna of Charaka and Aṣṭāṅga Hṛdaya, the Doṣa are understood through their guṇa (qualities), locations, functions and pathological patterns. Their qualities explain why a particular cause aggravates a particular Doṣa and why a particular symptom cluster appears.

A Doṣa can be considered in at least three ways:

Prakṛta (normal): performing its physiological functions in an appropriate amount and location.
Vṛddha or prakupita (increased or aggravated): excessive, disturbed or abnormally active.
Kṣīṇa (depleted): reduced in quantity or function.

The exact state matters. “Vāta disease” is too broad unless you can say whether Vāta is increased, obstructed, displaced, weakened or acting in association with another Doṣa. The Nidānasthāna and Chikitsāsthāna of Charaka and the Nidānasthāna of Aṣṭāṅga Hṛdaya repeatedly show that the same Doṣa may produce different expressions according to site, association and stage.

Guṇa helps you identify the Doṣa pattern

Doṣa	Important guṇa (qualities)	Typical direction of pathological reasoning
Vāta	Rūkṣa (dry), laghu (light), śīta (cold), khara (rough), sūkṣma (subtle), cala (mobile)	Dryness, irregularity, mobility, variable pain or depletion
Pitta	Uṣṇa (hot), tīkṣṇa (sharp), drava (liquid), sara (flowing), amla tendency, slightly oily tendency	Heat, sharp transformation, inflammation-like features, fluidity or sourness
Kapha	Guru (heavy), śīta (cold), manda (slow), snigdha (unctuous), ślakṣṇa (smooth), sthira (stable)	Heaviness, slowness, excess cohesion, stagnation or accumulation

This table is a reasoning aid, not a substitute for the classical disease description. For example, heaviness does not automatically prove Kapha involvement; the student must interpret it with the site, associated symptoms, Agni and the complete samprāpti.

Second principle: Dūṣya is what becomes affected

Dūṣya means the bodily component that becomes vitiated or affected in a disease process. In most exam contexts, dūṣya primarily includes the sapta dhātu (seven tissues)—rasa, rakta, māṃsa, medas, asthi, majjā and śukra—but the wider pathological field may also involve mala, upadhātu (secondary tissue products) and other bodily components depending on the disease and the author’s context.

Doṣa and Dūṣya are therefore not interchangeable. Doṣa describes the active regulatory disturbance; Dūṣya describes the material or functional substrate that is damaged, altered or unable to perform its role. A simple exam discriminator is: Doṣa is the vitiating force; Dūṣya is the component that bears the disturbance.

The order of the seven dhātu is classically examinable and should be memorised exactly:

Rasa — the primary nourishing fluid or nutritive transport fraction.
Rakta — blood tissue.
Māṃsa — muscle tissue.
Meda — adipose tissue and unctuous tissue component.
Asthi — bone tissue.
Majjā — marrow and associated internal tissue component.
Śukra — reproductive tissue or generative essence.

This is the classical order described in the dhātu teaching of the Sūtrasthāna of Charaka, the Śārīrasthāna of Suśruta and the Sūtrasthāna of Aṣṭāṅga Hṛdaya. Do not change the order to fit a modern anatomical sequence; the order itself is a frequent one-liner and short-note target.

Dūṣya is determined by more than the disease name

A named disease may have a principal Dūṣya, but the affected tissue cannot be selected mechanically from the name alone. You should ask three questions:

Which tissue or material shows the clearest pathological change?
Which Doṣa has the qualities capable of disturbing it?
Which srotas carries, nourishes or connects that material?

For instance, a condition involving marked dryness, pain and depletion may suggest Vāta interacting with a tissue that has become undernourished. A condition dominated by heat, discoloration and sharp transformation may suggest Pitta affecting Rakta or another susceptible Dūṣya. These are interpretive patterns; the classical diagnosis still depends on the full set of nidāna, rūpa, site and samprāpti.

Third principle: Srotas is the pathway and field of expression

Srotas means a bodily channel or pathway through which substances, impulses or functional materials move. The Vimānasthāna of Charaka explains srotas through their roots, transported materials and signs of disturbance. Suśruta’s Śārīrasthāna provides a more structural perspective, while Aṣṭāṅga Hṛdaya incorporates channel thinking into its wider account of the body.

A srotas should not be imagined only as a pipe. In classical reasoning, it may be a route of movement, a site of transformation, a field of nourishment, or a functional network associated with a particular tissue or process. This is why the same Doṣa can produce different diseases in different srotas.

Charaka’s Vimānasthāna describes four broad forms of srotas-duṣṭi (channel disturbance):

Ati-pravṛtti — excessive flow or overactivity.
Saṅga — obstruction or stagnation.
Sirā-granthi — abnormal nodular or constricted change in the channel.
Vimārga-gamana — movement through an improper route.

The terminology and enumeration should be written carefully according to the text and commentary being followed. The order above is the classical order commonly taught from Charaka’s srotas discussion, and the order itself is examinable. In a long answer, define each term rather than merely listing it.

Srotas connects location with manifestation

The srotas answers the question, “Where and through what functional route does this pathology express itself?” If the Doṣa is the disturbed agent and the Dūṣya is the affected material, the srotas explains the route by which their interaction becomes clinically visible.

The root of the srotas is also important. The Vimānasthāna of Charaka identifies roots for different channels and describes the effects of damage or disturbance. Suśruta’s Śārīrasthāna similarly emphasises the importance of channel roots. In an examination answer, do not list roots without linking them to the channel’s function and the consequences of its duṣṭi.

Srotas focus	Question to ask	What it adds to samprāpti
Mūla (root)	Where is the channel anchored or primarily organised?	Helps identify the important site of pathology
Vahana (transport)	What does it carry or support?	Connects the channel to Dūṣya and nourishment
Duṣṭi	How is its movement altered?	Explains excess, obstruction, abnormal route or structural change
Manifestation	Where do signs become visible?	Links internal process with clinical features

Fourth principle: Agni governs transformation

Agni means the digestive and metabolic fire responsible for transformation. In the classical texts, Agni is not limited to the sensation of appetite. It includes the capacity by which food is digested, substances are transformed and nourishment becomes available to the body.

The principal Agni is Jāṭharāgni (the central digestive fire), associated with digestion in the gastrointestinal tract. Classical teaching also describes the bhūtāgni (elemental metabolic fires) and dhātvagni (tissue-level metabolic fires). The details and arrangement are explained in the Chikitsāsthāna of Charaka, the Sūtrasthāna and Chikitsāsthāna of Aṣṭāṅga Hṛdaya, and the corresponding digestive and tissue discussions in the Laghu Trayī.

The four clinical states of Jāṭharāgni are:

Agni state	Plain meaning	Broad pathological implication
Samāgni	Balanced digestion	Appropriate transformation and regularity
Viṣamāgni	Irregular digestion	Variable, unpredictable or Vāta-associated disturbance
Tīkṣṇāgni	Excessively sharp digestion	Rapid or excessive transformation, classically associated with Pitta
Mandāgni	Weak or slow digestion	Sluggish transformation, classically associated with Kapha

These associations are not absolute labels for every patient or disease. A student should explain the state of Agni in relation to Doṣa, food, season, stage and strength. Charaka’s Chikitsāsthāna discussion of Grahaṇī is especially useful for understanding that altered Agni can produce abnormal digestion and elimination, while Aṣṭāṅga Hṛdaya makes the fourfold Agni classification highly memorable for clinical study.

Āma means an incompletely transformed or improperly processed product. It is commonly taught as arising when Agni is unable to complete digestion, but Agni and āma should not be treated as synonyms. Agni is the transforming capacity; āma is a consequence or pathological product of inadequate transformation.

The Sūtrasthāna and Chikitsāsthāna of Aṣṭāṅga Hṛdaya, along with Charaka’s Chikitsāsthāna, connect impaired digestion with the production and movement of āma. The exam-ready distinction is: Agni describes the process-capacity; āma describes the improperly formed result.

How the four components join in samprāpti

A useful clinical reasoning sequence is to move from cause to expression. This sequence is a teaching scaffold, not a claim that every Saṃhitā states the four terms as one fixed numbered algorithm.

Step 1: Identify the nidāna and the Doṣa tendency

Start with the causes. The Sūtrasthāna of Charaka and Aṣṭāṅga Hṛdaya classify causes according to their effects on the Doṣa and body. Ask which qualities are being repeatedly introduced: dryness and irregularity suggest a Vāta direction; heat and sharpness suggest Pitta; heaviness, coldness and stability suggest Kapha.

Then assess whether the Doṣa is increased, displaced, obstructed or associated with another Doṣa. A mixed Doṣa state is not solved by selecting the loudest symptom; it requires a pattern-based reading.

Step 2: Assess Agni before assuming tissue disease

Next ask what happened to digestion and transformation. Is Agni balanced, irregular, sharp or weak? Has the altered Agni produced incomplete transformation, excessive transformation or irregular nourishment?

The order here is pedagogical. Classical texts discuss Agni in different contexts, and not every disease begins with a primary digestive abnormality. Nevertheless, Agni assessment prevents a common error: naming a Dūṣya without explaining how nourishment, transformation or waste separation became disturbed.

Step 3: Locate the vulnerable Dūṣya

Now identify the tissue or bodily material that is bearing the principal damage. The dhātu order—Rasa, Rakta, Māṃsa, Meda, Asthi, Majjā, Śukra—must remain intact in your written answer.

Do not confuse the tissue that shows a symptom with the Doṣa causing it. Pain in a tissue does not automatically make that tissue Vāta, and heat in a tissue does not automatically make it Pitta. The correct answer describes the Doṣa–Dūṣya relationship.

Step 4: Name the srotas and its disturbance

Ask through which channel the affected material normally moves or is nourished. Then specify the type of channel disturbance: excessive flow, obstruction, abnormal route or another classical form of srotas-duṣṭi.

This step explains why two patients with a similar Doṣa disturbance may show different disease patterns. The Doṣa’s qualities interact with the tissue’s vulnerability and the channel’s condition.

Step 5: State the site of manifestation

Finally identify the adhiṣṭhāna (site or substratum) where the pathology becomes expressed. The site may be a tissue, organ region, channel or system. The Nidānasthāna of Charaka and Aṣṭāṅga Hṛdaya repeatedly teach that manifestation depends on where the disturbed Doṣa settles.

A concise samprāpti statement should therefore sound like this: a specified nidāna aggravates a particular Doṣa; altered Agni changes transformation and nourishment; the Doṣa interacts with a susceptible Dūṣya; the affected srotas develops a defined form of disturbance; and the disease manifests at a particular site with characteristic rūpa.

The most important relationships at a glance

Relationship	Exam-ready meaning
Doṣa–Agni	Doṣa disturbance may alter the quality and regularity of transformation
Agni–Dūṣya	Impaired transformation may produce inadequate, excessive or irregular tissue nourishment
Doṣa–Srotas	The Doṣa moves through, obstructs, irritates or misdirects channel function according to its qualities
Srotas–Dūṣya	The channel carries, nourishes or expresses the affected tissue or material
Doṣa–Dūṣya	The active vitiated factor interacts with the bodily component that becomes diseased
Agni–Srotas	Altered transformation influences what is available to move through and nourish channels

The four terms therefore describe different questions, not competing diagnoses. Doṣa asks “what is disturbed?” Dūṣya asks “what is affected?” Srotas asks “through where or in which pathway?” Agni asks “how is transformation functioning?”

Applied understanding: reading a clinical pattern

This section is for applied understanding, not medical advice. Its purpose is to show how the four-part model organises a case description; it does not recommend treatment or replace assessment by a qualified practitioner.

Imagine a case with irregular appetite, variable bowel function, abdominal distension and intermittent, shifting discomfort. A superficial answer may write “Vāta aggravation.” A stronger Ayurvedic analysis asks whether Agni is viṣama (irregular), whether the gastrointestinal pathway is the principal srotas, whether movement or obstruction is involved, and whether the first affected Dūṣya is still being demonstrated or merely assumed.

The reasoning might be expressed as follows: Vāta-promoting causes disturb the movement-regulating Doṣa; Jāṭharāgni becomes irregular; the annavaha srotas (channel associated with food and digestion) shows disturbed movement or obstruction; and the clinical expression remains centred in the digestive field. The answer should not invent a deep-tissue Dūṣya when the case has not established one.

Now imagine a different pattern dominated by marked heat, sour or sharp digestive features, altered colour and a strong inflammatory-type presentation. By way of modern correlation, one might notice features that resemble irritation or inflammatory physiology, but that modern comparison is not the classical diagnosis. In Ayurvedic terms, the student must still identify Pitta qualities, Agni state, the relevant Dūṣya and the affected srotas from the textual disease description.

A third pattern may involve heaviness, sluggish digestion, excess mucosity and reduced movement. The reasoning may point toward Kapha association and mandāgni, but again the student must distinguish the Doṣa from the Dūṣya. Kapha may be the active disturbance, while the Dūṣya could be a fluid, tissue or channel function that has become altered.

The lesson is methodological: do not convert one symptom into one Doṣa, one organ into one Dūṣya, or one modern disease label into a complete Ayurvedic samprāpti.

Why the same Doṣa produces different diseases

The Doṣa alone does not determine the final disease. The classical texts explain variation through factors such as deśa (region), kāla (time or season), bala (strength), prakṛti (constitutional type), age, diet, habits, affected site and the stage of disease.

Aruṇadatta and Hemādri, while commenting on Aṣṭāṅga Hṛdaya, often clarify how general Doṣa principles are modified by location and association. Cakrapāṇi’s commentary on Charaka is similarly important for understanding that a clinical statement must be read with its context, not detached from the surrounding discussion.

For examination purposes, write the samprāpti as a relationship rather than a slogan. “Pitta affects Rakta” is a starting point. “Pitta is aggravated by specified causes, associates with Rakta in a relevant srotas, alters Agni or tissue transformation where applicable, and manifests with the described features at the specified site” is a reasoning answer.

Memory aids and confusion breakers

A four-question memory scaffold

Use A-M-R-S:

A — Agni: How is transformation functioning?
M — Malady-maker: Which Doṣa is disturbed?
R — Recipient: Which Dūṣya receives the damage?
S — Srotas: Through which channel or pathway does it move or manifest?

You may remember the classical logic as force, fuel, field, flow: Doṣa is the disturbed force; Dūṣya is the vulnerable material; Srotas is the field and route; Agni is the transforming capacity that processes nourishment and waste.

Three common confusions resolved

Doṣa vs Dūṣya: Doṣa is the vitiating functional factor; Dūṣya is the bodily component that becomes affected.
Agni vs āma: Agni is the process-capacity of transformation; āma is an incompletely transformed pathological product.
Srotas vs Dhamanī: Srotas is the broader classical idea of a channel or pathway; Dhamanī is a specific anatomical or functional vessel term used in particular textual contexts. Do not use the two words as automatic synonyms.
Agni vs appetite: Appetite may be one observable sign, but Agni includes digestion and transformation more broadly.
Dūṣya vs adhiṣṭhāna: Dūṣya is what becomes affected; adhiṣṭhāna is the site or substratum where manifestation occurs. They may overlap in a given disease but are conceptually distinct.

How examiners ask this

Long-answer stem

“Explain the role of Doṣa, Dūṣya, Srotas and Agni in the development of disease.”

For full marks, define all four terms, cite Charaka’s Nidānasthāna and Vimānasthāna, include the dhātu order, explain srotas-duṣṭi, describe Agni states, and end with a coherent samprāpti sequence.

Short-note stem

“Write a short note on Doṣadūṣyasaṃmūrchana.”

Begin by distinguishing the vitiated Doṣa from the affected Dūṣya, then explain their interaction in a suitable site and srotas. Do not reduce the answer to a vague statement that “Doṣa affects dhātu.”

One-liner or MCQ angle

“Which of the following is not a form of srotas-duṣṭi described in Charaka’s Vimānasthāna?”

Revise the classical sequence: ati-pravṛtti, saṅga, sirā-granthi and vimārga-gamana. Read the options carefully because a distractor may use a familiar symptom rather than a channel-disturbance category.

Applied reasoning stem

“Discuss the samprāpti of a disease with reference to Doṣa, dūṣya, srotas and Agni.”

A full-marks response must show causation, Doṣa aggravation, Agni status, Dūṣya involvement, srotas disturbance and site of manifestation. Finish by stating the stage or point at which the clinical features become evident.

Study takeaways

Doṣa is the disturbed functional factor; Dūṣya is the bodily component that becomes affected.
Srotas describes the channel, route and functional field through which materials and pathology move.
Agni is the digestive and metabolic capacity of transformation, not merely appetite.
The seven dhātu must be remembered in order: Rasa, Rakta, Māṃsa, Meda, Asthi, Majjā, Śukra.
Charaka’s classical srotas-duṣṭi sequence is ati-pravṛtti, saṅga, sirā-granthi and vimārga-gamana.
Samāgni, viṣamāgni, tīkṣṇāgni and mandāgni describe four clinically important states of Jāṭharāgni.
Doṣa alone does not explain disease; site, Dūṣya, srotas, Agni, time, strength and stage modify expression.
In a samprāpti answer, write the interaction: nidāna → Doṣa disturbance → Agni and transformation → Doṣya–srotas involvement → manifestation.

FAQ

What is the difference between dosha and dushya?

Doṣa is the functional factor that becomes vitiated and drives the pathological process. Dūṣya is the tissue, mala or other bodily component that becomes affected by that disturbance. In one line: Doṣa is the active vitiating force; Dūṣya is the material that bears the damage.

What is the role of agni in disease?

Agni governs digestion and transformation, from central digestion to tissue-level metabolism. When Agni becomes irregular, weak or excessively sharp, the processing and nourishment of bodily materials may be altered, influencing the subsequent Doṣa–Dūṣya interaction.

What is dosha dushya sammurchana?

Doṣadūṣyasaṃmūrchana describes the pathological coming together of a vitiated Doṣa and a susceptible Dūṣya. It is not a complete samprāpti by itself; the answer should also identify the srotas, site, Agni status and disease-specific manifestation.

What are the types of srotas dushti?

Charaka’s Vimānasthāna describes ati-pravṛtti (excessive flow), saṅga (obstruction), sirā-granthi (abnormal nodular or constricted change) and vimārga-gamana (movement through an improper route). Learn the terms in this order because enumeration questions often test sequence.

How do I write dosha dushya srotas and agni in a case analysis?

First identify the nidāna and disturbed Doṣa, then assess Agni, identify the affected Dūṣya, and name the srotas and site of manifestation. Present the answer as an interacting samprāpti rather than four unrelated definitions, and clearly label any modern comparison as modern correlation rather than classical doctrine.

Clinical reasoning Doṣa Dūṣya Srotas Agni