Katen is without doubt one of the Twelve Deva Guardians, the guards of the twelve instructions who defend the world (primarily based on the unique Buddhist deities from India). He was a particular messenger for the gods, carrying their directions within the flames and smoke of his fire.
He is the guardian of the Southeast and is related to Shingon fire rituals. In artist Hanabusa Itcho’s 18th century hanging scrolls, Katen is a youthful model of Fujin or Futen, a person with a darkish beard, sporting leopard pores and skin clothes and jeweled armbands. He carries jewel-studded ornaments in his arms and walks in a halo of flames.
Katen could have advanced from the Shinto god Kagutsuchi, the fire god born to Izanami.