Rig veda 6.16.19

आग्निर् अगामि भारतो वृत्रहा पुरुचेतनः |
दिवोदासस्य सत्पतिः || 6.16.19

āgnir agāmi bhārato vṛtrahā purucetanaḥ |
divodāsasya satpatiḥ ||

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āgnir agāmi - Psychic spirit (agni) is approached

bhārato - By the human carrier (vedic worshipper)

vṛtrahā - (This psychic spirit) is the slayer of dark forces (Python Vrtra)

purucetanaḥ - has multiple knowledge
divodāsasya satpatiḥ - Is the master of Divodasa (name or a trtsu king)