प्रकृत्या विषमा देवी कृता तेन समा कथम् ।
तस्य मेध्यं हयं देवः कस्य हेतोरपाहरत् ॥ ४ ॥
tasya medhyam hayam devah
prakrtya-by nature; visama-not level; devi-the earth; krta-was made; tena-by him; sama-level; katham-how; tasya-his; medhyam-meant for offering in the sacrifice; hayam-horse; devah-the demigod Indra; kasya-for what; hetoh-reason; apaharat-stole.
The surface of the earth is by nature low in some places and high in others. How did King Prthu level the surface of the earth, and why did the King of heaven, Indra, steal the horse meant for the sacrifice?