
Rishi: Atharvanic tradition (specific r̥ṣi not recoverable from the single verse alone)
Devata: Agni
Chandas: Anuṣṭubh (probable)
It means treating the sacred fire as an encircling boundary-power: Agni is envisioned not only in the hearth but as a protective ring around the home or settlement.
Because the protection is meant to be renewed regularly; the mantra frames security as a daily re-establishment of Agni’s guarding presence.
No. In Atharvavedic usage, ‘assailants’ can include human attackers as well as rakṣas and other harmful influences; Agni is invoked to repel and destroy any hostile intrusion.