धूम्रा दिशः परिधयः कम्पते भूः सहाद्रिभिः ।
निर्घातश्च महांस्तात साकं च स्तनयित्नुभिः ॥ १५ ॥
dhumrah-smoky; disah-all directions; paridhayah-encirclement; kampate-throbbing; bhuh-the earth; sahadribhih-along with the hills and mountains; nirghatas-bolt from the blue; ca-also; mahan-very great; tata-that; sakam-lightning; ca-also; stanayitnubhih-thundering sound without any cloud.
Just see how the smoke encircles the sky. It appears that the earth and mountains are throbbing. Just hear the cloudless thunder and see the bolts from the blue.