scene of carnage; battleground
Figurative extension of the Buddhist sense, used to describe a place or situation of intense fighting, bloodshed, or ruthless competition.
戦場はまさに修羅道のようだった。
The battlefield was truly like a scene of carnage.
The Asura realm is said to be a world of unending conflict.
Literally 'Asura scene'; more commonly used for a scene of carnage or a fierce battleground, while 修羅道 retains a stronger Buddhist flavor.
Asura realm
Abbreviation of 阿修羅道 (ashuradō), from Sanskrit asura, referring to a class of power-seeking deities in Buddhist cosmology.