
Rishi: Atharvanic tradition (edition-dependent).
Devata: Maruts, Pūṣan, Bṛhaspati, Agni.
Chandas: Anuṣṭubh (likely; edition-dependent).
It is used for āyuṣya (longevity) and paustika (increase)—to bless a person with long life along with progeny and wealth through a consecratory sprinkling prayer.
Each contributes a facet of well-being: Maruts give vigor, Pūṣan gives nourishment and protection, Bṛhaspati grants sacred effectiveness, and Agni seals the blessing through consecration.
Traditionally a simple sprinkling with clean water (optionally with a little ghee) before the household fire is sufficient; the core requirement is focused recitation with the intent of consecration.