Dewi Danu

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When the high priest of the lake dies, the lake chooses the next one. On the outer rim of the Batur caldera at Kintamani, a priestess falls into trance, and the Balinese hold that the goddess of the crater lake speaks through her mouth. What the goddess speaks is a name — a boy’s name, a child not yet grown, a commoner of the descent group called the Paseks of the Black Wood. From that moment the boy belongs to her. He will keep his hair long and uncut, be robed in white, and hold authority over her temple for the rest of his life; because he was named by the goddess and not by any council of men, he is called sanglingan, “lightning-struck.” He is the human throat through which she will govern the water of an island. Everything else about Dewi Danu widens out from that single act of naming: the lake reaching down to choose the mouth that will speak for it.

Her name is the plainest statement of what she is. Danu is the Balinese and Old Javanese word for the crater lake; ulun danu is its head or upstream source, the point where the water first collects. In full she is honored as Ida Batari Dewi Ulun Danu, the divine lady of the head-of-the-lake — the goddess of the caldera lakes of the high center of Bali and, through them, of the water that reaches everything that grows. She is not a personification laid over the water for decoration. In the Balinese reckoning she owns it, and lends it out.

The head of the lake

Dewi Danu reaches the record by an unusual road. She has no great myth-cycle of her own, no single narrated adventure that fixes her the way stories fix other deities. What fixes her instead is an institution — a working order of temples and priests and irrigation societies that runs in her name and has run, in some form, for a very long time. To describe her genealogy is less to trace a descent than to map where the water is, and who tends it as it comes down.

Her chief seat is Pura Ulun Danu Batur, and the name is exact. It stands above Danau Batur — Lake Batur, the largest lake on the island, a crescent of cold water cupped inside the caldera of Mount Batur at roughly 1,031 meters, in the district of Kintamani in Bangli Regency. There the goddess is worshipped alongside Wisnu — Vishnu, the preserver, the Hindu power of the waters — the two of them honored together, a great pan-Hindu deva and a specifically Balinese one meeting over the same substance. The temple is one of the Pura Kahyangan Jagat, the great directional world-temples that hold the island’s spiritual coordinates, and in the Balinese order it is reckoned the source-temple of every spring and river on Bali: not one water source among many but the source, the reservoir the rest descend from.

Her domain is not one lake but the whole highland catchment. Beyond Batur she governs the Bedugul lakes to the west — Bratan, Buyan, and Tamblingan — the reservoirs from which central Bali’s rivers, and through them its irrigation channels, ultimately fall. Wherever the water first gathers, she is named. Her second great seat sits on the largest of those western lakes: Pura Ulun Danu Bratan, traditionally dated to 1633, on Lake Bratan near Bedugul in Tabanan Regency, dedicated to the same goddess of the same waters.

The world she belongs to is its own thing, and worth naming precisely. Dewi Danu is no import: she is a power of the island’s own religion — a water-cult older than any doctrine, drawn up into the Shaiva-Buddhist order the way the lake is drawn down into the rice — and one of its working gods rather than a figure carried in from India. She is a deva, a working god of the living world, a goddess of the waters. She is not the transcendent godhead. The formless supreme from whom every deva emanates is Sang Hyang Widhi, and the explicit insistence on that supreme as one God was itself substantially foregrounded in the twentieth century; the fuller account of that reform belongs with Sang Hyang Widhi. Dewi Danu stands lower and nearer — close enough to the fields that a farmer draws her water at a weir.

The descending order of holy water

What Dewi Danu commands is not rainfall in the abstract. It is the whole downward order of tirtha, holy water — the lake as the source, and from the source a hierarchy that, in J. Stephen Lansing’s word, “cascades.” From Pura Ulun Danu Batur at the head, the order descends through regional water temples, each governing a reach of the network, down to the small temples of the individual subaks — the cooperative societies of farmers who share a single source — and so at last into the terraced fields far below. Water in this scheme is never merely a resource. It is a divine gift that must be received, blessed, and passed on in the right sequence. This is why Balinese Hinduism is sometimes called Agama Tirtha, the religion of holy water: the whole cult turns on the sacredness of what she gives.

The cascade is a real chain of tended places, not a metaphor. The water temples are staffed by pemangku, lay temple-priests drawn from the community rather than the Brahmana line, and at Batur the whole order answers to the Jero Gede. Between the lake-temple at the head and the field-temple at the foot stand the regional water temples, each keyed to a natural division of the flow — a spring, a river reach, a diversion weir where a channel is drawn off and split. Every division is marked by a shrine, and the offering left there is the acknowledgment made before the water is allowed to part. What descends is therefore double: the physical water running down the canals, and the holy water carried the other way and back — dipped from the lake, blessed at the source-temple, and taken down by the subaks’ own delegates so that the smallest field is watered, in the tradition’s account, from the same source that fills the great meru’s basin on the rim. To follow one channel down from Danau Batur is to pass through a sequence of these checkpoints, each a place where the debt to the goddess is registered before the gift moves on.

Set against Dewi Danu is her companion power, and the pairing is the key to what she governs. Dewi Danu is the giver of water as Dewi Sri is the giver of grain — the two poles of the rice cycle, upstream and terrace, the flow and the harvest. Where Sri’s realm is the ripening ear in the paddy, Danu’s is the moment before the field: the water still in the canal, still descending, still hers. The two are narrated as companion goddesses, not the same goddess, and to collapse them is to lose the specific thing Danu owns, which is not fertility in general but the ordered fall of the water that fertility depends on. Their realms converge in the subak, where her water meets Sri’s rice.

That convergence is arranged along the axis the whole island is read by, the balance of complementary opposites the Balinese call rwa bhineda. Dewi Danu is the kaja pole — mountain-ward, upstream, high, generative — the cold source on which the kelod, the seaward and low, depends. The water descends from her height to the fields below, and the harmony of the two directions, not the triumph of either, is what the arrangement is built to keep. The teaching has a name the world now knows: Tri Hita Karana, the three harmonies of people, land, and the divine, the philosophy the subak landscape was inscribed under. Dewi Danu is the divine term in that triad made hydrological — the goddess whose gift, received in order, holds the balance.

Her authority is not merely doctrinal; it is exercised, and the exercise is public. Each year delegations from the subaks ascend to Pura Ulun Danu Batur bearing offerings of flowers, taking holy water back down to their own fields, and joining the rites of music and prayer at the lake-temple. The goddess is understood to render rulings on the distribution of water — who floods and who drains, which reach of the network takes its share and when — and her earthly voice in those rulings is her high priest, the Jero Gede named at the caldera rim. He is no Brahmana pedanda of the priestly caste but a commoner of the Pasek Kayu Selem, the Black Wood descent group, chosen as a child through the trance of the priestess and holding the temple for life. The manner of his choosing, set down here at the distance of the public record as the ethnography reports it, carries the whole principle in one gesture: the priest who keeps her temple is her appointment and not a lineage’s. Imbalance in the waters — a channel run dry, a field drowned, a crop lost to pests — is read as imbalance in what is owed her, and the account has to be kept. To take her water is to enter a debt discharged in offering, ceremony, and the keeping of the order she holds.

Pura Ulun Danu Bratan on Lake Bratan near Bedugul, the western seat of Dewi Danu — the view reproduced on the Indonesian 50,000-rupiah note. CEphoto, Uwe Aranas, via Wikimedia Commons. CC BY-SA 3.0.

Catastrophe, the computer, and the icon

Dewi Danu’s afterlife in the record runs through both catastrophe and social science, and it begins with her temple standing somewhere other than where it now stands. Until the twentieth century, Pura Ulun Danu Batur sat down on the caldera floor beside a village called Karang Anyar. In 1926 the mountain answered. The eruption that began on 3 August buried Karang Anyar and overran the temple compound, sparing the holiest structure, the eleven-tiered meru of the goddess. The survivors carried that meru, and the temple’s heirlooms and gamelan, up to the highest rim of the caldera and rebuilt around it, where the temple stands today — the “relocated” Pura Ulun Danu Batur seen now, a displacement and a survival rather than a spectacle. The rebuilt complex numbers nine temples with some 285 shrines and pavilions; its great odalan falls at the tenth full moon of the Balinese year, purnama kadasa, around late March and early April, when the subaks come up to the lake.

The system the goddess presides over entered global scholarship above all through one anthropologist. J. Stephen Lansing, in Priests and Programmers (Princeton, 1991) and the film The Goddess and the Computer, argued that the water-temple hierarchy under Dewi Danu was not decorative religion but a working management system. The case turned on a controlled insult. When the Green Revolution reached Bali — the BIMAS program from 1971, pressing high-yield rice and urging farmers to plant as often as possible with packets of fertilizer and pesticide — it cut across the synchrony the temples had long kept. Coordinated fallow was broken; pests, no longer starved by an island-wide pause in planting, multiplied; water ran short downstream. Working with modelers at the Santa Fe Institute, Lansing built an agent-based simulation of 172 subaks, each planting at first on its own schedule and watching its neighbors’ results, and the model self-organized — within a handful of simulated years — into very nearly the cropping pattern the temples had coordinated all along. The synchrony that looked like ritual turned out to sit at the optimum between two pressures: staggering water use so everyone downstream got a share, and planting in unison so the pests crashed. By the later 1980s the government had backed away from forced multi-cropping — the disruptive directives were revoked in 1988 — and the temple-ordered pattern returned.

The reading is celebrated and it is genuinely contested, and the honest state of the scholarship is that specialists still disagree — over how egalitarian the water temples really were before colonial rule, over whether coordinated fallow does all the ecological work the model assigns it, over whether the sources were read toward the conclusion they were meant to reach. What is not in dispute is that the case made Dewi Danu’s temple order a touchstone in the wider argument about the landscape, and that argument reached its formal end on 6 July 2012, when UNESCO inscribed the “Cultural Landscape of Bali Province: the Subak System as a Manifestation of the Tri Hita Karana Philosophy” — 19,519.9 hectares of terraces and water temples, with Pura Ulun Danu Batur named at the head of the system. The subak itself is old: the cooperative is traced to about the ninth century and first attested in inscriptions around the eleventh, where it appears as kasuwakara, which became suwak and then subak; as of 2019 some 1,559 of them still work the island’s water. The goddess’s arrangement, in other words, was documented as a living institution long before it was modeled as an elegant one.

Lake Batur and the cone of Mount Batur from the caldera rim at Penelokan — the crater lake the Balinese hold to be the source of every spring and river on the island. Jos Dielis, via Wikimedia Commons. CC BY 2.0.

Her western seat has had a different afterlife — not catastrophe but fame. Pura Ulun Danu Bratan became one of the most reproduced images of the island, its meru shrines seeming to float when the lake rises around the peninsula they stand on, and its picture carried on the reverse of the Indonesian 50,000-rupiah banknote. The tourist icon and the sacred place are not the same thing, and the distance between them is easy to miss. Within the complex an eleven-storey meru is dedicated to Shiva and his consort Parvati, and a Buddhist stupa stands apart from the Hindu court — an ordinary instance of the Shaiva–Buddhist syncretism the whole tradition is made of — while the subaks of the district come to the lake-temple to pray over their water. The camera on the rim sees a floating temple. The farmer who takes holy water from it is doing something the postcard has no frame for.

Across both seats the same figure holds: a goddess whose theology and hydrology are, in the Balinese account, a single order. The lake that chooses its own priest is the lake that feeds the terraces, and the descent from one to the other — from the trance at the caldera rim through the cascading temples down to the last flooded field — is not two things, a religion and an irrigation works, laid side by side. It is one descent, and Dewi Danu is its source. The living tradition keeps her at the head of the water; the critically-read ethnography finds a working system where it looked for folklore; the Balinese farmer, drawing at the weir, settles an account with the goddess who let the water fall. All three are looking at the same water, coming down.

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