Few dragon-adjacent traditions span as much territory, or remain as actively living, as the Naga — powerful serpent-deities of Hindu and Buddhist tradition found across India, Nepal, Tibet, Cambodia, Thailand, Laos and beyond, capable of taking human form and just as often depicted as multi-hooded cobras of immense size and power.
Hindu cosmology places the Nagas' magnificent underground realm, Patala, beneath the earth, ruled from jewelled palaces by their kings. Shesha (also called Ananta, "the endless") is the most cosmically significant of all — an immense, multi-headed serpent upon whose coils the god Vishnu reclines in the primordial ocean between cycles of creation, and who is said to bear the weight of all the worlds upon his hoods.
Vasuki, another great Naga king, plays the central supporting role in the Samudra Manthan — the same "Churning of the Ocean of Milk" myth that produced the eclipse-serpents Rahu and Ketu covered elsewhere in this collection. In that story, Vasuki's own enormous body was used as the literal rope wound around Mount Mandara, with gods pulling one end and demons the other, churning the cosmic ocean to produce the nectar of immortality.
One of Buddhism's most beloved and frequently depicted images involves the Naga king Mucalinda: shortly after the Buddha's enlightenment, a great storm arose while he sat in deep meditation. Mucalinda emerged, coiled his body around the Buddha to protect him from rising floodwaters, and spread his great hood above the Buddha's head like a living umbrella, shielding him for seven days until the storm passed. Statues of the meditating Buddha sheltered beneath a rearing, hooded cobra remain especially common across Cambodia and Thailand to this day.
Nagas are also credited in some Buddhist traditions as guardians of hidden scripture — the philosopher Nagarjuna is said to have retrieved the Prajnaparamita sutras from the underwater palace of the Naga king, where the Buddha had reportedly entrusted them for safekeeping until humanity was philosophically ready to receive them.
Carved in stone at Angkor: the great causeways leading into Angkor Wat and several other temples of the Khmer Empire in Cambodia are lined with monumental stone Naga balustrades — seven-headed serpents forming the bridge railings themselves, among the most visible and photographed physical evidence of Naga veneration anywhere in the world.
An honest look at a genuinely observed phenomenon: each October, along a stretch of the Mekong River in Thailand and Laos, glowing reddish fireballs are reported rising silently from the water into the night sky — locally attributed to the Phaya Naga breathing fire in celebration of the Buddhist Lent. The event, called Bang Fai Phaya Nak, draws large crowds annually and is genuinely, repeatedly photographed. Scientific explanations have proposed combustible phosphine gas rising from decomposing organic sediment on the riverbed, though this remains disputed and not conclusively proven, and some observers have raised the possibility of human intervention. This reference presents the phenomenon honestly: witnessed, photographed and unresolved, sitting exactly on the boundary between living folklore and unexplained natural event.