naumi—I offer my respectful obeisances; tam—unto Him; gauracandram—who is known as Lord Gauracandra; yaḥ—who; ku-tarka—by bad arguments; karkaśa-āśayam—whose heart was hard; sārvabhaumam—Sārvabhauma Bhaṭṭācārya; sarva-bhūmā—the Lord of everything; bhakti-bhūmānam—into a great personality of devotion; ācarat—converted.