 तस्य बुद्धिरियं जाता वाल्मीकेर्भावितात्मन: ।कृत्स्नं रामायणं काव्यमीदृशै: करवाण्यहम् ।।    
 A thought occurred to Valmiki, who is capable of putting thoughts into action "I shall  compose the epic named Ramayana entirely in this metre". 