तेजसः सोम्याश्यमानस्य योऽणिमास ऊर्ध्वः समुदीषति सा वाग्भवति ॥ ४ ॥
In plain words
Of fiery nourishment being consumed, O gentle one, whatever subtle essence rises upward becomes speech.
Close to the Sanskrit
Of fire being eaten, O gentle one, whichever subtle essence rises upward, that becomes speech.