Rishi: Vājasaneyin ritual tradition (chandas-bandhu formula)
Devata: Agni; second hemistich invokes Chandas (Gāyatrī) as operative principle
Chandas: Gāyatrī (explicitly named; the mantra itself is a chandas-identification formula)
Samhita Patha (Devanagari) समि॑द्धो अ॒ग्निः स॒मिधा॒ सुस॑मिद्धो॒ वरे॑ण्यः । गा॒य॒त्री छन्द॑ इन्द्रि॒यं त्र्यविर्गौ॒र्वयो॑ दधुः
Transliteration samídho agníḥ samídhā súsamiddho váreṇyaḥ | gāyatrī́ chánda indríyaṃ tryàvir gāúr váyo dadhúḥ
Translation സമിധയാൽ അഗ്നി ജ്വലിച്ചിരിക്കുന്നു—സുസമിദ്ധൻ, വരേണ്യൻ (ആരാധ്യൻ/തിരഞ്ഞെടുക്കപ്പെടേണ്ടവൻ). ഗായത്രി ഛന്ദസ്—ഇന്ദ്രിയം (ഇന്ദ്രന്റെ തേജസ്/ബലം); ത്ര്യവി (ത്രിവിധ ആടി/മേട), ഗൗ (പശു)യും വയഃ (പ്രാണശക്തി)യും—ഇവയെ അവർ സ്ഥാപിച്ചു.
Padapatha (Word Analysis) समि॑द्धः । अ॒ग्निः । स॒मिधा॑ । सु-समि॑द्धः । वरे॑ण्यः । गा॒य॒त्री । छन्दः॑ । इ॒न्द्रि॒यम् । त्रि-अ॒विः । गौः । वयः॑ । द॒धुः
Word by Word समिधा with fuel-stick / by kindling-fuel वरेण्यः most choice-worthy / excellent गायत्री Gāyatrī (metre/deity) त्र्यविः the threefold ewe (symbolic) दधुः they placed / bestowed Entities Mentioned I
Indra (as indriya/vigour) Viniyoga (Ritual Application)