Most religious traditions face a structural problem: revelation is in the past, and the present keeps producing new insight that has nowhere authoritative to go. Tibetan Buddhism solved this with an unusually elegant mechanism.

Terma — “treasure” — are teachings said to have been concealed by Padmasambhava and his consort Yeshe Tsogyal in the eighth century, to be discovered centuries later, at the moment when they would be most needed, by predestined revealers called tertöns.

The result is a channel for ongoing revelation that carries the authority of the founding period. It is primarily a Nyingma institution, with a parallel tradition in Bon, and it has produced an enormous body of literature.

The concealment #

The traditional account: during the earlier diffusion, Padmasambhava foresaw the persecution under Langdarma and the long periods of decline to come. Rather than transmit everything openly, he concealed teachings — in rock, in lakes, in statues, in the sky, and in the mind-streams of his disciples.

For each, he appointed a future discoverer, usually identified as the rebirth of one of his own students, and entrusted the treasure to a protector. He also composed prophecies specifying the time, place, and circumstances of discovery.

Yeshe Tsogyal, his principal Tibetan disciple, is credited with writing down and concealing much of the material, which gives the tradition a female figure at its origin.

The two kinds #

Sa-ter: earth treasure #

Physical objects recovered from physical locations — a cave, a rock face, a pillar, a lake, a statue.

What is typically found is not a finished text but a small quantity of dakini script: symbolic characters, sometimes a single syllable, written on yellow parchment. The script is not readable in the ordinary sense. The tertön uses it as a trigger: contemplating it causes the full teaching to arise in their mind, which they then write out, sometimes at great length, sometimes over years.

Discoveries are frequently public, witnessed by crowds, and accompanied by the physical difficulty of extraction — a tertön entering a lake, or climbing a cliff face.

Gong-ter: mind treasure #

Teachings that arise directly in the tertön’s mind, without a physical object, having been concealed in the mind-stream itself. No excavation; the teaching simply appears, complete or in fragments, often in dreams or visions.

Mind treasures are the more common in later periods and are the more difficult to authenticate, for obvious reasons.

Other categories include dag-nang, pure visions received directly from a deity or a master; nyen-gyu, hearing lineages; and yang-ter, “re-concealed” treasures discovered a second time after the first discoverer hid them again.

What is in them #

Terma are not marginal. Several of the most important texts in Tibetan Buddhism are treasures.

The Bardo Thodol, the Tibetan Book of the Dead, discovered by Karma Lingpa in the fourteenth century.

The Longchen Nyingtik, revealed by Jigme Lingpa in the eighteenth century — a mind treasure that became one of the most widely practised Dzogchen cycles in the Nyingma school.

The Life and Liberation of Padmasambhava, revealed by Orgyen Lingpa in the fourteenth century — the source of most of what is known about Padmasambhava, which is to say that the biography of the concealer is itself a treasure.

The Mani Kabum, associated with Songtsen Gampo and the cult of Avalokiteshvara in Tibet.

Terma literature includes practice cycles, ritual manuals, medical texts, histories, prophecies, and instructions for locating beyul — hidden valleys, places of refuge concealed for times of crisis. Several Himalayan regions are traditionally identified as beyul.

The tertöns #

The tradition names a great many, with lists of “major” and “minor” treasure revealers and a canonical set of one hundred and eight.

Among the most significant: Nyangral Nyima Özer (12th c.), Guru Chöwang (13th c.), Dorje Lingpa, Pema Lingpa (15th c., Bhutan’s national saint and an ancestor of its royal family), Ratna Lingpa, Jigme Lingpa (18th c.), and Chokgyur Lingpa (19th c.), who was central to the Rime movement.

Tertöns are frequently not celibate monks. Many are ngakpa — married yogic practitioners — and several traditions hold that a consort is necessary for the revelation of certain treasures. This is one of the ways the terma tradition sits outside the monastic mainstream.

Pema Lingpa’s most famous discovery illustrates the public character of the tradition: he entered a lake holding a lit butter lamp, before a sceptical crowd, and emerged with a treasure chest and the lamp still burning. The site, Mebar Tsho (“the burning lake”), is a pilgrimage destination in Bhutan.

The authentication problem #

A mechanism for continuous revelation is also a mechanism for continuous fabrication, and the tradition knows this.

The critics. Sakya and Geluk scholars have criticised terma for centuries, on the ground that teachings without a traceable Indian origin and an unbroken transmission lineage cannot be verified. Sakya Pandita was particularly sharp. The Geluk school, with its emphasis on documented lineage and scholastic authentication, has generally been the most sceptical.

Buton, compiling the Kangyur and Tengyur in the fourteenth century, excluded most Nyingma tantras on similar grounds — which is why the Nyingma maintain their own separate collection, the Nyingma Gyubum.

The tradition’s criteria. Nyingma authorities developed tests: the prophecy should specify the discovery; the tertön should be recognisably the rebirth of an appropriate disciple; the teaching should be doctrinally consistent with established Buddhist teaching; it should produce results in practitioners; and it should be recognised by qualified masters. Signs and portents at the discovery are also cited.

The frank assessment. These criteria are not decisive, and the tradition has produced both material of the highest quality and material widely regarded within Nyingma circles as fraudulent. Tibetan sources themselves distinguish genuine tertöns from false ones and are not shy about the category.

How to think about it #

Scholarship has generally treated terma as a mechanism of textual and doctrinal innovation, functioning within a culture that valued antiquity and lineage above originality. Attributing a new teaching to Padmasambhava gives it standing that an openly new composition could not have.

This is not the same as calling it fraud. Janet Gyatso’s study of Jigme Lingpa — who left unusually detailed autobiographical accounts of his own visionary experience — shows a practitioner working through genuine visionary material and struggling with questions about its status, rather than a forger.

It is also worth noticing that the same problem attends the Mahayana sutras generally. The Prajnaparamita texts appeared five centuries after the Buddha’s death and were presented as his word, with the legend of Nagarjuna retrieving them from the nagas serving exactly the function Padmasambhava’s concealment serves. Every Buddhist tradition has had to authorise new material; terma is one of the more explicit solutions.

The tradition now #

Terma revelation has not stopped. Tertöns have been recognised in the twentieth and twenty-first centuries, including among Tibetan teachers in exile and, more contentiously, among Western practitioners.

Chögyam Trungpa revealed material described as terma — the Shambhala teachings — after establishing himself in North America, which raised the authentication question in a new setting.

The practice cycles descending from historical treasures remain central to Nyingma practice. A Nyingma practitioner’s daily liturgy is quite likely to be from a terma cycle, and the preliminary practices most commonly used come from the Longchen Nyingtik.

Common questions #

Are terma genuinely ancient? Textually, essentially all of them date from the period of their discovery rather than the eighth century. What the tradition claims is concealment and revelation, which is not a claim a textual scholar can test.

Does this make them inauthentic? Within the tradition, no — authenticity is a matter of the transmission’s validity and the teaching’s efficacy, not of manuscript date. Outside it, the honest position is that terma are Tibetan compositions of their period, produced by a mechanism that the culture accepted and that occasionally produced work of great depth.

Do all Tibetan schools accept terma? Nyingma centrally; Kagyu substantially; Sakya and Geluk with considerable reserve. Bon has its own parallel treasure tradition.

What is dakini script? Symbolic characters on the recovered parchment, held to be readable only by the destined tertön. Examples are reproduced in Tibetan sources and do not correspond to any known writing system.

Can new terma appear? Yes, and they do. The tradition explicitly anticipates continuing discovery, and prophecies are said to specify treasures still to be found.

Sources & further reading #

Tulku Thondup, Hidden Teachings of Tibet: An Explanation of the Terma Tradition (Wisdom, 1986) — the standard account from within the tradition. Janet Gyatso, Apparitions of the Self: The Secret Autobiographies of a Tibetan Visionary (Princeton, 1998) — on Jigme Lingpa, and the best study of what a tertön actually experienced. Robert Mayer, A Scripture of the Ancient Tantra Collection (Kiscadale, 1996) — on the Nyingma tantras and the authentication dispute. Yeshe Tsogyal, The Life and Liberation of Padmasambhava, trans. Kenneth Douglas & Gwendolyn Bays (Dharma, 1978) — a terma about the concealer. Sam van Schaik, Tibet: A History (Yale, 2011) — for the historical context.