ekah-alone; eva-indeed; isvarah-the Supreme Personality of Godhead; tasmin-in that; sura-karye-the activities of the demigods; sura-isvarah-the Lord of the demigods, the Supreme Personality of Godhead; vihartu-to enjoy pastimes; kamah-desiring; tan-unto the demigods; aha-said; samudra-unmathana-adibhih-by activities of churning the ocean.