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What is Sanatana Dharma?

By Aninda Nath · The Essentials · Understanding Hinduism · 14 min read ·

Start here Explainer For newcomers

Sanatana Dharma, 'the eternal way,' is the tradition's own name for itself, built on the ancient refrain esha dharmah sanatanah, 'this is the eternal law.' The world more often calls it Hinduism, a name that began as a foreign word for the people living beyond the river Sindhu (the Indus). It has no single founder, no single scripture, and no central authority. It is better understood as a family of related traditions sharing a body of texts, a set of core ideas (dharma, karma, rebirth, and liberation), and a vast pantheon understood by many as one reality in many forms.

By about 518 before the Common Era, the Persian emperor Darius was having the lands of his empire cut into rock, and the lists came to include, at the eastern edge of the known world, a province the inscriptions call Hindush. The word was the Persian way of saying Sindhu, the great river the people there called the Indus. It named a place, and the people who lived past it. It named no religion at all.

That foreign river-word is the distant root of the name half the world now uses for one of its largest and oldest living traditions. Hindu. Hinduism. The people so named did not call themselves that, and for most of their history did not call what they did by any single name, because it did not occur to them that the thing needed one. This is the first thing to understand about Sanatana Dharma, and it is stranger than it sounds. The tradition is older than its names, and the names came mostly from outside.

This article is the door in. It tries to say, plainly and with its sources shown, what this tradition is: where its names come from, what holds it together when it has no founder and no single book, and the small handful of ideas that almost everything else grows from.

Two names, from two directions

Start with the two words, because they come from opposite directions and the difference matters.

Hindu came from outside. After the Persians, the Greeks took the same river-word and made it Indos, and the land beyond it India. For centuries “Hindu” stayed a geographic and cultural label for the people of the subcontinent. Only in the modern period did it harden into the name of a religion. The English word Hinduism is younger still, appearing in print only in the late eighteenth century and fixed in place by Western scholars in the nineteenth. The historian can date this with some confidence, and scholars from Wilfred Cantwell Smith onward have argued over how much the neat single “religion” called Hinduism was a creation of that colonial encounter.

Sanatana Dharma came from inside. It is two Sanskrit words. Sanatana, eternal, ancient, without beginning. Dharma, which has no clean English equivalent, gathering up law, order, duty, righteousness, and the way things rightly are, all at once. Together, the eternal dharma. The eternal way.

Here honesty requires care, because the phrase is often presented as the religion’s own scriptural name from the beginning, and that is not quite what the record shows. What the old texts actually carry is a refrain, esha dharmah sanatanah, “this is the eternal law,” used to seal a teaching. It closes a verse in the Manusmriti, the law book, after an instruction on speaking the truth kindly. It returns again and again through the Mahabharata. In these places it means “this duty is timeless,” not “the name of our religion is Sanatana Dharma.” Using the phrase as the proper name of the whole tradition is, as the scholar Peter Heehs has traced, mostly a development of the nineteenth century and after, when Hindus reaching for a name from the inside found one in their own oldest words.

So the tradition is genuinely old, and its self-name is genuinely built from ancient phrases, and the use of that name as a label for the whole is genuinely recent. All three are true at once. Through this article, the tradition’s account of itself and the historian’s account are both given, and kept apart, because both are owed.

A tradition with no founder

Most of the world’s great religions begin with a person. A prophet, a teacher, a founder whose life is the origin and whose words are the book. Sanatana Dharma has no such person. There is no founder, no single prophet, no original moment, no central church, and no one book.

What there is instead is a family. The scholar Julius Lipner reaches for the image of a banyan tree, the kind that drops roots from its branches until a single tree becomes a grove that is still, somehow, one tree. Gavin Flood describes the tradition as held together by family resemblances, the way the members of a family share no single feature yet are recognisably kin. There is no creed every Hindu must affirm. A person may worship one God, many gods, or none, may hold the world supremely real or finally an appearance, and still stand inside the tradition. What binds it is not agreement on doctrine. It is a shared body of texts, a shared vocabulary of ideas, a shared pantheon and a shared field of practice, drawn on differently by communities that have been arguing productively with one another for three thousand years.

That refusal to centralise is not a weakness in the tradition. It is closer to its method. Where lineages differ, the tradition has tended to keep both rather than crown one. This article follows the same rule.

How old, and how many

The plain facts of scale are worth stating, with their sources, because they are often inflated in both directions.

As of the most recent global count, by the Pew Research Center for the year 2020, there are roughly 1.2 billion Hindus, close to fifteen percent of all the people alive. That makes it the third largest religious tradition on earth, after Christianity and Islam. The overwhelming majority, about ninety-five percent, live in India, where it is the faith of roughly four in five people; the rest are spread through Nepal, Mauritius, the islands of Bali and the Caribbean, and a large modern diaspora.

On age, caution is the honest posture. Sanatana Dharma is regularly called the oldest living religion in the world, and it is among the oldest by any reckoning. But the strongest form of that claim depends on a contested link. If the tradition descends in an unbroken line from the cities of the Indus Valley of the third millennium before the Common Era, then it is the oldest of all. That “if” is real. The Indus script is undeciphered, and the connection, while plausible to many, is not proven. What can be said without an “if” is that its oldest text, the Rigveda, was composed well over three thousand years ago, and that the tradition has been continuously alive ever since. That alone makes it ancient almost beyond comparison.

The few ideas everything rests on

THE SHAPE OF SANATANA DHARMAthe eternal way: revealed, with no founderSANATANA DHARMADharmaorder & one’s dutyKarmaaction bears fruitSamsarabirth, death, rebirthMoksharelease from the roundATMAN = BRAHMANtat tvam asi · that thou artSANATANA RAHASYA
The load-bearing ideas — dharma, karma, saṃsāra, mokṣa — standing on the identity of ātman and brahman.

Beneath the enormous variety runs a small set of ideas that almost every part of the tradition shares. Learn these and most of the rest becomes legible.

Dharma, met already in the name, is the first. It is the moral and cosmic order, and also one’s own right place and duty within it. To live in accord with dharma is to live as one ought, and as reality is built.

Karma is the second, and it is older and more exact than its popular use suggests. The word means simply action, and the principle is that action bears fruit: what one does shapes what one becomes. The Brihadaranyaka Upanishad states it without ornament, in Max Müller’s translation: “a man of good acts will become good, a man of bad acts, bad.” Karma is not fate handed down from outside. It is the long consequence of one’s own deeds.

Those consequences play out across more than one life. Samsara is the third idea, the cycle of birth, death, and rebirth through which the self passes. The Bhagavad Gita gives it its most famous image, in Telang’s rendering: “as a man, casting off old clothes, puts on others and new ones, so the embodied self, casting off old bodies, goes to others and new ones.” Death, in this view, is a change of garment.

And the cycle has an exit. Moksha, the fourth idea, is release: liberation from the round of rebirth, the final goal the whole tradition points toward, however many roads it offers to reach it.

Under all four stands the deepest and most distinctive claim of all. The innermost self, the atman, the bare awareness at the centre of a person, and brahman, the ultimate reality at the ground of everything, are not two separate things. The Chandogya Upanishad compresses the whole teaching into three words a father says to his son, tat tvam asi, glossed by Müller as “thou art it.” That thou art. What you most deeply are and what reality most deeply is meet at the same point. The schools of philosophy divide, sharply and fruitfully, over exactly how to read that identity, and the tradition keeps every reading on the shelf.

The aims, the stages, and a hard question

The tradition is unusually clear-eyed that a human life has more than one legitimate aim. It names four, the purusharthas: dharma, living rightly; artha, the pursuit of prosperity and security; kama, the enjoyment of pleasure and love; and moksha, the final liberation. The striking thing is the inclusion of wealth and pleasure as proper goods, to be sought in their place. The spiritual life does not require despising the world. It requires putting things in order.

A classical life was likewise mapped into four stages, the ashramas: the student, the householder, the forest-dweller who withdraws, and the renunciate who lets go of all of it. The Manusmriti lists them and adds, tellingly, that all of them rest on the householder, the ordinary married person whose work supports the rest.

Honesty requires naming a harder feature here too. The tradition’s social texts also describe varna, a fourfold ordering of society, and from it grew the lived system of jati, the thousands of birth-communities that make up what is called caste. The textual ideal and the social reality are not the same thing, and the relationship between them is contested ground. The famous verse of the Purusha Sukta (Rigveda 10.90) that pictures the classes as born from a cosmic being belongs, scholars including Jamison and Brereton note, to the latest layer of that text and reads as a social ideal rather than a description of fact. The Gita itself, at 4.13, ties the fourfold order to quality and action rather than simply to birth. And the system as lived has been among the most searching internal criticisms of the tradition, above all from B. R. Ambedkar, who held that caste had to be rejected at the root, since it could not be reformed. This article reports the texts and the debate; it does not endorse the hierarchy.

The texts, in brief

The library is vast, and it sorts into two great classes.

Shruti, “that which is heard,” is the revealed core, held by the tradition to be eternal and authorless, received by the ancient seers rather than composed by them. It is the four Vedas and, at their philosophical summit, the Upanishads. Smriti, “that which is remembered,” is the human-authored remainder, immense and beloved: the two epics, the Ramayana and the Mahabharata; the Puranas, the great storehouses of myth and devotion; the law books; and, embedded in the epic, the Bhagavad Gita, which for many is the single most cherished text of all. The site has full guides to each of these. Here it is enough to know the shape of the shelf.

One reality, many forms

To the newcomer the most bewildering feature is the sheer crowd of gods. The resolution is given in the oldest text itself. A famous line of the Rigveda, in Griffith’s translation, says of the one reality that “sages give many a title; they call it Agni, Yama, Matarisvan.” One being, many names. Whether that makes the tradition monotheistic or polytheistic is taken up in its own guide.

This is the key the tradition hands you. The many deities are, for a great many Hindus, faces and forms of a single ultimate reality, approached by different temperaments through different doors. Max Müller, who popularised the term, called the Vedic habit of addressing one god at a time as the supreme henotheism, a worship of one without denying the others. It is neither the simple polytheism it looks like from outside nor a flat monotheism.

In practice the tradition flows in a few great streams. The Vaishnavas take Vishnu, and his forms Rama and Krishna, as supreme. The Shaivas take Shiva. The Shaktas worship the Goddess, the Devi, as the ultimate power. The Smartas hold several deities together as forms of one brahman. Across all of them runs the gentle idea of the ishta-devata, the chosen deity, the particular form of the divine that a person holds dearest, without thereby calling the others false.

The roads, and the practice

Because temperaments differ, the tradition offers more than one road to the one goal. The Gita lays out the great ones: the path of action offered without attachment to its fruit (karma yoga), whose seed is its most quoted line, “your business is with action alone, not by any means with fruit”; the path of loving devotion to a personal God (bhakti yoga); and the path of liberating knowledge (jnana yoga). To these the later tradition added the meditative discipline of raja yoga. The tidy list of four is itself a relatively modern teaching device, made popular in the nineteenth century, but the roads it names are old and real.

And the tradition is lived, daily and through the year, far more than it is theorised. It is lived in puja, the ritual honouring of the deity in image and shrine; in the temple, the mandir, built around its inner sanctum where the devotee comes for darshan, the act of seeing and being seen by the divine; in the great festivals that turn the calendar; and in pilgrimage to sacred rivers and mountains and shrines, including gatherings so large, like the Kumbh Mela, that they are counted among the largest assemblies of human beings anywhere on earth.

That is the tradition in outline. A family with no founder and no single book, ancient beyond easy dating, held together by a handful of shared ideas and a shared library and a vast shared pantheon understood by many as one. Everything on this site is, in the end, a closer look at one corner of what this article has only sketched.

The names came late, and from many directions.

What they name was already here.

Frequently asked

What does Sanatana Dharma mean?

It means 'the eternal dharma' or 'the eternal way,' from sanatana (eternal, ancient, without beginning) and dharma (law, order, duty, the way things rightly are). The phrase is built on an old scriptural refrain, esha dharmah sanatanah, 'this is the eternal law,' found in the Manusmriti and repeated through the Mahabharata. Using 'Sanatana Dharma' as a name for the whole religion, however, is mostly modern, from the nineteenth century onward.

Is Sanatana Dharma the same as Hinduism?

They refer to the same tradition, but the two words come from opposite directions. 'Hindu' began as a foreign term, from the Persian and Greek name for the land and people beyond the river Sindhu (the Indus), and 'Hinduism' as a religion-label is a modern coinage. 'Sanatana Dharma' is the tradition's name for itself from the inside. Many practitioners prefer it for exactly that reason.

Who founded Hinduism, and what is its holy book?

Hinduism has neither. There is no single founder and no one central scripture. Instead there is a large library of texts in two broad classes, shruti ('that which is heard,' the revealed Vedas and Upanishads) and smriti ('that which is remembered,' the epics, the Puranas, the Bhagavad Gita and the law books). Different communities give different texts the central place.

What are the core beliefs of Sanatana Dharma?

A few ideas recur across almost all of it: dharma, the moral and cosmic order; karma, that actions bear consequences; samsara, the cycle of rebirth; and moksha, liberation from that cycle. Behind these stands the teaching that the innermost self (atman) and the ultimate reality (brahman) are deeply one. How exactly to understand that, and which deity or path to follow, is where the traditions differ.

Sources
  • Bhagavad Gita 2.22, 2.47, 2.51, 4.13, 15.7, in Kashinath Trimbak Telang (trans.), The Bhagavadgita, Sacred Books of the East vol. 8 (Oxford, 1882; public domain).
  • Manusmriti 4.138 and 6.87, in Georg Bühler (trans.), The Laws of Manu, Sacred Books of the East vol. 25 (Oxford, 1886; public domain).
  • Rigveda 1.164.46 (ekam sat) and 10.90.12 (Purusha Sukta), in Ralph T. H. Griffith (trans.), The Hymns of the Rgveda (Benares, 1896; public domain).
  • Chandogya Upanishad 6.8.7 and Brihadaranyaka Upanishad 4.4.5, in F. Max Müller (trans.), The Upanishads, Sacred Books of the East vols. 1 and 15 (Oxford, 1879-1884; public domain).
  • Pew Research Center, 'How the Global Religious Landscape Changed from 2010 to 2020' (June 9, 2025), for population figures.
  • Julius Lipner, Hindus: Their Religious Beliefs and Practices (Routledge, 1994); Gavin Flood, An Introduction to Hinduism (Cambridge, 1996); Peter Heehs, 'A Brief History of the Eternal Religion,' International Journal of Hindu Studies 29.1 (2025), on the term Sanatana Dharma.
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