tatah-therefore, because of this; pahi-kindly save; maha-bhaga-O great sage; purvaih saha-along with my forefathers; gatam-gone; tamah-to darkness; yatha-so that; tarema-we can cross; dusparam-very difficult to cross; prajaya-by getting a son; tat-that; vidhehi-kindly do; nah-for us.