Arjuna stops describing what he sees and speaks directly about what he now knows. "You are the supreme imperishable — the one thing truly worth knowing. You are the ultimate refuge of this universe. You are the undying guardian of eternal dharma. You are the Sanatan Purusha. This is my understanding."
Four declarations in four lines, each one a pillar. Imperishable — nothing can destroy you. Ultimate refuge — when everything else dissolves, you remain. Guardian of dharma — the cosmic order rests under your protection. Eternal Purusha — you are the being who exists before time and after it. Arjuna is not reciting theology. He is reporting direct experience.
The closing phrase — 'mato me,' my understanding — carries humility even within certainty. Arjuna does not say 'this is the final truth.' He says 'this is what I have understood.' A seeker who has seen infinity and still speaks with the modesty of a student.