KENA UPANISHAD · 3/8

तदभ्यद्रवत् तमभ्यवदत् कोऽसीति वायुर्वा अहमस्मीत्यब्रवीन्मातरिश्वा वा अहमस्मीति ॥

tadabhyadravat tamabhyavadat ko’sīti vāyurvā ahamasmītyabravīnmātariśvā vā ahamasmīti ॥

He rushed upon That; It said to him, 'Who art thou?' 'I am Vayu,' he said, 'and I am he that expands in the Mother of things.'