Picture an underground realm with gem-encrusted walls and gold floors, ruled not by pitchfork demons but by cultured, shape-shifting serpents. That is Patala, home of the Nagas, and it is tied directly to the water table. This episode connects a termite mound in South India, the origin myth of the Cambodian Empire, and an eight-year-old Naga princess in the Lotus Sutra who achieves instant enlightenment. We start with the word itself, traced to a root meaning naked or hairless, and the polysemy that lets naga mean snake, cloud, mountain, or elephant, all expressions of vast, heavy, fluid natural power.

From there we explore Vasuki as the churning rope in the Samudra Manthan, Shesha as Vishnu’s cosmic bed, Mucalinda sheltering the meditating Buddha with seven hoods, and the Tibetan klu who punish water pollution. We then follow the Naga into statecraft: the Funan-era marriage of Kaundinya and the Naga princess Soma, the numerology of odd and even-headed Naga balustrades at Angkor Wat, and the 13th-century account by Zhou Daguan of a Khmer king obligated to sleep nightly with a nine-headed serpent spirit atop the Phimeanakas tower.

• Why South and Southeast Asian traditions revere and ally with the serpent instead of slaying it
• The Lotus Sutra’s Dragon King’s daughter and its challenge to ancient gender norms
• How Khmer rulers used Naga descent to legitimize power over an agrarian society
• The Mekong Naga fireballs, Thailand’s 2022 declaration of the Naga as a national symbol, and the royal plowing oracle
• Antaboga in Indonesian wayang and the Bakunawa moon-eater of the Philippines