Why are there only Six Schools of Darsan? Haribhadrasuri explained

Haribhadrasuri (550 CE)

Composed by the revered Haribhadrasuri,
the Saddarsana Samuccaya (Compendium of Six Philosophies) declares:

“There are precisely six systems of philosophy (Darsan), classified according to their fundamental distinctions. The wise must understand them through the differences in their guiding deities and essential principles.” (Verse 2)

Which are these six systems?

The verse clarifies by number — “six philosophies.” In this world, only six are widely recognized as the principal schools. The term “only” is used restrictively, though many other doctrines are known, varying by subtle differences.

As stated in the ancient aphorism in Prakrit Language:

असियसयं किरियाणं अकिरियवाईण हुंति चुलसीई।
अन्नणियं सत्तठ्ठी वेणइआणं च वत्तीसं।।

“There are eighty-four systems of those who believe in action (kriyāvādins– Doing right Karma), sixty-six of those who affirm the soul (ātmavādins-Knowing the Self),
and thirty-two of those who follow the path of discipline (vinayavādins-Practising the right behaviour).”

Thus, there are altogether three hundred and sixty-three heterodox sects. Among the Buddhists, too, there are eighteen divisions — Vaibhāṣika, Sautrāntika, Yogācāra, Madhyamika, and others.

Similarly, among the followers of Jaimini, numerous distinctions exist, born of their disciples —

“Utpal knows the aphorisms, Prabhākara the reasoning,
Vāmana knows both, but Revaṇa knows neither.”

There are also several sub-sects — Bahudaka, Kuṭīcaka, Haṃsa, Paramahaṃsa, as well as Bhatta (Kumaril) and Prabhākara branches — each forming internal divisions. Moreover, even within other systems, differences arise owing to variations in deities, doctrines, sources of knowledge, and practices.

Nevertheless, in the ultimate sense, all these are encompassed within the six principal schools alone. Therefore, the expression “only six” is used with precision.

One may question: “Why only six, when there are countless combinations and distinctions?”
The answer lies in the phrase “according to fundamental divisions.”
There are fundamentally six primary categories, each serving as a root from which sub-schools emerge. Hence, scholars must comprehend these six — through the lens of the differences in their guiding deities and core truths.

Here, “deities/devatas” refer to the presiding ideals or divine principles that each darshan venerates, and “truths” refer to the doctrines leading toward liberation. Understanding the distinction among these divine and philosophical foundations enables one to discern the uniqueness of each system of thought. (Verse 2)

बौद्धं नैयायिकं सांख्यं जैनं वैशेषिकं तथा।
जैमिनीयं च नामानि दर्शनानाममून्यहो ।।

The six schools of philosophy are known as: Buddhist, Naiyāyika (Nyāya), Sāṅkhya, Jaina, Vaiśeṣika, and Jaiminīya (Mīmāṁsā). (Verse 3)

Here, the verse identifies the names of these philosophical systems: “Buddhist” and so forth. The word “aho” expresses admiration or emphasis — “Indeed, these are the names of the philosophies.” The verb “is to be known” is implied, though not explicitly stated, just as it is understood in expressions like “asti bhavati” (“there is, there exists”). Vedanta was not included in the system of दर्शन (darshan).

Vedanta was the name of the ideology propagated by Gaudapada`s disciple Acharya Sankara. Sankaracharya denied Vedic Karma, Vinaya, and the personal self-Atman.

To explain each term:

“Buddhist” (Bauddha) refers to the doctrine of the Saugatas, followers of Buddha, whose guiding deity is Buddha himself.

“Naiyāyika” refers to the Pāśupata or Nyāya philosophy, so named because it upholds nyāya, or logical reasoning and valid knowledge (pramāṇa), as the chief path to truth. Thus, that which does not depart from nyāya is termed Naiyāyika.

“Sāṅkhya” represents the Kāpila system, attributed to the sage Kapila, where the term derives from the analysis (saṅkhyāna) of principles and from recognition of Prakṛti and Puruṣa as the two eternal realities.

“Jaina” signifies the Ārhat or Jain philosophy, whose revered deity is Jina, the Conqueror — hence called Jaina or Ārhatamata.

“Vaiśeṣika” denotes the Kaṇāda school, founded by Kaṇāda Ṛṣi. Although it shares certain doctrines and deities with the Naiyāyikas, it distinguishes itself through its detailed analysis of substance (dravya), qualities (guṇa), and particularity (viśeṣa); thus it is called Vaiśeṣika — “that which teaches particularity.”

“Jaiminīya” represents the Kumaril Bhaṭṭa or Mimamsa system, based on the teachings of Jaimini Ṛṣi.

The particle “ca” (“and”) indicates inclusion, suggesting the collection or combination of all six.

Hence, these are the six distinct names of the major philosophical systems, and the student should clearly understand them as the foundational divisions of Indian philosophical thought. (Verse 3)

Tanmoy Bhattacharyya

Nov 9, 2025

परमार्हतहरिभद्रसूरिप्रणीतः
षड्‌दर्शनसमुच्चयः

दर्शनानि षडेवात्र मूलभेदव्यपेक्षया।
देवतातत्त्वभेदेन ज्ञातव्यानि मनीषिभिः ।। 2 ।।

कानि तानि दर्शनानीति? व्यक्तितस्तत्सङ्ख्यामाह–दर्शनानीति।
अत्र जगति प्रसद्धानि षडेव दर्शनानि, एवशब्दोऽवधा?रणे, यद्यपि भेदप्रभेदतयाबहूनी दर्शनानि प्रसिद्धानि। यदुक्तं सूत्रे–
असियसयं किरियाणं अकिरियवाईण हुंति चुलसीई।
अन्नणियं सत्तठ्ठी वेणइआणं च वत्तीसं।।
[अशीतिशतं क्रियाणामक्रियावादिनो भवन्ति चतुरशीतिः।
आत्मवादिनः सप्तषष्टिर्विनयवादिनां च द्वात्रिंशद्।।]
इति त्रिषष्ट्यधिका त्रिशती पाषण्डिकानाम्, बौद्धानां चाष्टादश निकायभेदाः, वैभाषिकसौत्रान्तिकयोगाचारमाध्यमिकादयो भेदाः, जैमिनेश्च शिष्यकृता बहवो भेदाः–
उत्पलः कारिकां वेत्ति तन्त्रं प्रभाकरः।
वामनस्तूभयं वेत्ति न किञ्चिदपि रेवणः ।।
अपरेऽपि बहूदक कुटीचर हंस परमहंस भाट्टप्राभाकरादयो बहवोऽन्तर्भेदाः।
अपरेषामपि दर्शनानां तत्त्वदेवता प्रमाणादिभिन्नतया बहुभेदाः प्रादुर्भवन्ति; तथाऽपि परमार्थतस्तेषामेतेष्वेवान्तर्भावात्षडेवेति सावधारणं पदम्।
ननु संघटमानानियतो भेदानुपेक्ष्य किमर्थं षडेव? इत्याह–मूलभेदव्यपेक्षयेति। मूलभेदास्तावत्षडेव षट्‌संख्यास्तेषांव्यपेक्षया तानाश्रित्येत्यर्थः, तानि दर्शनानि मनीषिभिः पण्डितैर्ज्ञातव्यानि बोद्धव्यानि। केन प्रकारेणेति? देवतातत्त्वभेदेन देवता दर्शनाधिष्ठायिकाः, तत्त्वानि च मोक्षसाधकानि रहस्यानि, तेषां भेदस्तेन पृथक् पृथग् दर्शनदेवता दर्शनतत्त्वानि च ज्ञेयानीत्यर्थः ।। 2 ।।

बौद्धं नैयायिकं सांख्यं जैनं वैशेषिकं तथा।
जैमिनीयं च नामानि दर्शनानाममून्यहो ।। 3 ।।

तेषामेव दर्शनानां नामान्याह–बौद्धमिति।
अहो इति इष्टामन्त्रणे, दर्शनानां मतानाममूनि नामानीति संग्रहः, ज्ञेयानीति क्रियाऽस्तिभवत्यादिवदनुक्ताऽप्यवगन्तव्या। तत्र बौद्धमिति बुद्धो देवताऽस्येति बौद्धं सौगतदर्शनम्, नैयायिकं पाशुपतदर्शनम्, तत्र न्यायः प्रमाणमार्गस्तस्मादनपेतं नैयायिकमिति व्युत्पत्तिः सांख्यमिति कापिलदर्शनम् अदिपुरुषनिमित्तेयं संज्ञा, जैनमिति जिनो देवताऽस्येति जैनमार्हतम्, वैशेषिकं काणाददर्शनम्, दर्शनदेवताऽऽदिसाम्येऽपि नैयायिकेभ्यो द्रव्यगुणादिसामग्र्या विशिष्टमिति वैशेषिकम्, जैमिनीयं जैमिनिऋषिमतं भाट्टदर्शनम्, चः समुच्चयस्य दर्शकः, एवं तावत् ष़ढ्‌दर्शननामानि ज्ञेयानि शिष्येणेत्यवसेयम् ।। 3 ।।