🎖 Based on traditional sources and standard scholarly editions.

The Shad-Darshanas: Systems of Hindu Philosophy

The intellectual tradition of Sanatana Dharma is characterized by a rich diversity of philosophical schools. Rather than a singular dogma, it embraces six orthodox (Astika) systems of thought, collectively known as the Shad-Darshanas (six visions). An Astika school is defined not by a belief in a personal God, but by its acceptance of the **Vedas** as the primary source of valid knowledge (Pramana). These systems differ in their metaphysics, physics, and logic, but all share the identical ultimate goal: the elimination of suffering and the attainment of spiritual liberation (Moksha).

The Six Orthodox (Astika) Systems

The six schools are traditionally grouped into three pairs of complementary systems:

1. Nyaya (न्याय) - The School of Logic

Founder: Sage Gautama (compiled in the Nyaya Sutras).

Philosophy: Nyaya focuses on epistemology, analyzing the sources of valid knowledge (Pramanas). It identifies four valid sources: perception (pratyaksha), inference (anumana), comparison (upamana), and verbal testimony (shabda). Nyaya argues that suffering is caused by ignorance, which can only be removed by acquiring clear, logical understanding of the true nature of reality.

2. Vaisheshika (वैशेषिक) - The Atomic School

Founder: Sage Kanada (compiled in the Vaisheshika Sutras).

Philosophy: Vaisheshika is a school of physics and metaphysics. It introduces a pluralistic ontology, arguing that the universe is made of tiny, indivisible, eternal particles called atoms (Paramanu). It classifies all existences into seven categories (padarthas). Vaisheshika works closely with Nyaya to form a combined logical-physical system (Nyaya-Vaisheshika).

3. Samkhya (सांख्य) - The Dualistic School

Founder: Sage Kapila (compiled in the Samkhya Sutras).

Philosophy: Samkhya is a strongly dualistic school, dividing existence into two eternal, independent realities:

Purusha: Pure, unconditioned, inactive consciousness.
Prakriti: Primordial matter, active, composed of three qualities (Gunas) — Sattva, Rajas, and Tamas.

Creation begins when Purusha associates with Prakriti, causing the Gunas to lose their equilibrium. Liberation is achieved when Purusha realizes it is completely distinct from Prakriti and its material evolutes.

4. Yoga (योग) - The Experiential School

Founder: Sage Patanjali (compiled in the Yoga Sutras).

Philosophy: While Samkhya provides the theoretical framework, Yoga provides the practical method. Patanjali defines Yoga as "Yogaś citta-vṛtti-nirodhaḥ" (Yoga is the cessation of the fluctuations of the mind). It outlines the famous **Ashtanga Yoga** (Eight-Fold Path): Yama (ethical restraints), Niyama (disciplines), Asana (posture), Pranayama (breath control), Pratyahara (sensory withdrawal), Dharana (concentration), Dhyana (meditation), and Samadhi (absorption).

5. Mimamsa (मीमांसा) - The Ritual School

Founder: Sage Jaimini (compiled in the Mimamsa Sutras).

Philosophy: Also called Purva Mimamsa, this school focuses on the hermeneutics and interpretation of the ritual sections (Karma Kanda) of the Vedas. It asserts that the Vedas are eternal and self-authorizing, and that the performance of Vedic sacrifices in strict accordance with the rules is the primary duty of humans, generating a force (Apurva) that yields results.

6. Vedanta (वेदान्त) - The Philosophical Culmination

Founder: Sage Badarayana (compiled in the Brahma Sutras).

Philosophy: Also called Uttara Mimamsa, this school focuses on the philosophical sections (Jnana Kanda) of the Vedas, namely the Upanishads. It is built on the **Prasthanatrayi** (three pillars): the Upanishads, the Brahma Sutras, and the Bhagavad Gita. Vedanta has branched into several key traditions based on the relationship between the individual soul (Jiva) and the Absolute (Brahman):

Advaita (Non-dualism): Propounded by Adi Shankaracharya. Brahman is the only reality; the soul is Brahman; the world is an illusion (Maya).
Vishishtadvaita (Qualified Non-dualism): Propounded by Ramanujacharya. The soul and world are real parts or attributes of the Supreme Brahman (Vishnu).
Dvaita (Dualism): Propounded by Madhvacharya. The soul and Brahman are eternally distinct entities.

Smritis and Dharmashastras

While the Vedas and Upanishads (Shruti) are eternal revelations containing unchanging truths, the Smritis and Dharmashastras are codes of conduct and social laws compiled by human sages. In the hierarchy of Hindu scriptures, Smritis hold secondary authority; their rules are designed to be adapted to fit different eras (Yugas) and locations. If any rule in a Smriti conflicts with the principles of the Upanishads, the Shruti rule always prevails.

Three Smritis are particularly prominent in the tradition:

1. Manusmriti (मनुस्मृति)

Compiled by the historical progenitor Manu, it was an early attempt to organize society based on roles and life-stages (Varnashrama). Academic scholars note that the text has undergone massive medieval interpolations, and many verses contradict the egalitarian teachings of the Upanishads. Traditionally, it is viewed as a law code written for a specific historical era.

2. Yajnavalkya Smriti (याज्ञवल्क्य स्मृति)

Attributed to Sage Yajnavalkya, this text is noted for its structured legal, judicial, and state administrative systems. It is more systematic and less rigid than the Manusmriti, focusing on evidence, contracts, and court procedures.

3. Parashar Smriti (पाराशर स्मृति)

Written by Sage Parashara (the father of Vyasa), this text holds massive importance because it declares itself to be the code of conduct written specifically for the **Kali Yuga**. It notes that the rigid rules of Satya or Treta yugas cannot be practiced in Kali Yuga, and advocates for charity (Dana), simplicity, and devotion as the primary duties of the current age.

Sources and Editorial Approach

The information presented on this page is compiled from standard Sanskrit manuscripts, Gita Press editions, and critical academic compilations such as those from the Bhandarkar Oriental Research Institute (BORI). We prioritize accuracy and translation alignment with classical commentators (such as Adi Shankaracharya, Sayana, and Ramanujacharya) rather than modern interpretations.

FAQ

Frequently Asked Questions

In the Indian philosophical tradition, Astika (orthodox) refers to schools that accept the authority of the Vedas (Nyaya, Vaisheshika, Samkhya, Yoga, Mimamsa, Vedanta). Nastika (heterodox) refers to schools that reject Vedic authority (Buddhism, Jainism, and Charvaka materialism). It is not synonymous with theism or atheism, as Samkhya is historically non-theistic yet classified as Astika.

Patanjali's Ashtanga Yoga includes:

Yama: Social restraints (non-violence, truth, non-stealing, celibacy, non-possession).
Niyama: Personal disciplines (purity, contentment, penance, self-study, surrender).
Asana: Steady, comfortable physical postures.
Pranayama: Breath and energy regulation.
Pratyahara: Withdrawal of senses from external objects.
Dharana: Concentration of mind on a single point.
Dhyana: Meditation (uninterrupted flow of consciousness).
Samadhi: Absolute spiritual absorption.

The Parashar Smriti declares that law codes must adapt to the capacity of humans in different eras. It notes that the strict spiritual standards of Satya Yuga (meditation) or Treta Yuga (complex sacrifices) are impossible for average humans in the distracted, materialistic Kali Yuga. It recommends charity (Dana) and simplified, heart-centric devotion as the primary practices for our era.

Formulated by Adi Shankaracharya, Advaita (non-dualism) argues that only one absolute reality exists — Brahman. The individual soul (Atman) is completely identical to Brahman. The perceived physical world and separate identities are projected by cosmic illusion (Maya). Realization of this truth brings instant liberation.