Verse 7

वासवाजौ तनुत्यागी वृत्रो विततमानसः ।अन्तःशान्तमना मानी चकार सुरसंगरम्

In plain words

Vṛtra, casting off the body in battle with Vāsava, his mind vast and outspread, proud, yet at peace within, waged war upon the gods.