यथाऽयं बालको देव त्वत्प्रसादात्पितामह । दीर्घायुर्जायते लोके तथा त्वं कर्तुमर्हसि
yathā'yaṃ bālako deva tvatprasādātpitāmaha | dīrghāyurjāyate loke tathā tvaṃ kartumarhasi
Ô Seigneur—ô Aïeul primordial (Brahmā)—par ta grâce, de même que cet enfant peut devenir longévif en ce monde, ainsi toi peux l’accomplir ; daigne le faire.
Unspecified petitioner (addressing Brahmā as Pitāmaha) within the narrative
Longevity and well-being are portrayed as fruits of divine grace sought through reverent prayer and righteous intention.
The immediate tīrtha is the Nāgarakhaṇḍa setting of Adhyāya 21; the verse itself is a prayer within that sacred-geography narrative.
A devotional petition (stuti/prārthanā) is implied; no explicit vrata, dāna, or snāna rule is stated in this verse.