Enma-Daio

Enma-Daio is the Buddhist lord of the underworld and judge of the dead. The figure derives from the Vedic deity Yama, transmitted into East Asia through translations of Buddhist texts and integrated into Japanese popular religion from the Heian period onward.

Genshin's Ojo-Yoshu (985 CE) describes the hell wardens of the Black Rope hell escorting the dead to Enma's court. The Konjaku Monogatari-shu (early 12th century), Book 4 chapter 41, includes the tale "A Man Who Reached Enma's Court Looking for His Child." The Juo-kyo and related sutras place Enma at the center of the Ten Kings tradition.

He is identified with the Indic Yama, the first human to die in Vedic cosmology. In Japan, the honji-suijaku tradition pairs Enma with Jizo Bosatsu as his original Buddha form.

He is venerated in enma-do halls and juo-do halls across Japan rather than at a single principal shrine. Notable sites include Senbon Enma-do (Inshoji) in Kyoto and Taisoji in Shinjuku, Tokyo.

He is also called Enma, Enma-O, Emma-Ten in Esoteric Buddhist contexts, and Yama in Sanskrit-rooted scholarship.