Verse 6

समकायशिरोग्रीवस्थानकः स महामतिः ।आसीच्छैलादिवोत्कीर्णश्चित्रार्पित इवाथवा

In plain words

His body, head, and neck held level and still, that great-minded one seemed carved from very rock, or else set into a painting.