Verse 9

मुक्तश्चलितुमाकर्तुं शक्नोति न मनागपि ।तज्ज्ञात्वा प्रविशाम्याशु देहमेवं विवस्वतः

In plain words

cannot stir or act even a little. Knowing this, I shall swiftly enter thus into the body of Vivasvat.