The Agni that burns during the Pāka yajña (Paka yajna; a ritual sacrifice called Paka), is called Savana. In lineage of this, the Agni for Vivici-homa, From this Vivici, another Agni is born, and that is called Arka. He had many sons, namely — Anīkavān (Anikavan), Rakṣohā (Rakshoha), Pitṛkṛt (Pitrikrit) and so on. During a yajña, the holy fire is transferred from one yajña-container to another — that is why such a lineage of Agni is conceptualised.