buddhiḥ sā pārtha tāmasī

adharmam-irreligion; dharmam-religion; iti-thus; ya-which; manyate-thinks; tamasa-by illusion; avrta-covered; sarva-arthan-all things; viparitan-the wrong direction; ca-also; buddhih-intelligence; sa-that; partha-O son of Prtha; tamasi-the mode of ignorance.