यया धर्ममधर्मं च कार्यं चाकार्यमेव च।
अयथावत्प्रजानाति बुद्धिः सा पार्थ राजसी।।18.31।।
18.31 That, by which one wrongly understands Dharma and Adharma and also what ought to be done and what ought not to be done that intellect, O Arjuna, is Rajasic (passionate).
18.31 O Partha, sa, that; buddhih, intellect; is rajasi, born of rajas; yaya, with which; prajanati, one understands; ayathavat, wrongly, not truly, not by discerning it from all points of view; dharmam, virtue, as prescribed by the scritpures; and adharmam, vice, what is prohibited by them; [By dharma and adharma are implied the seen and the unseen results of actions as revealed by the scriptures; karya and akarya respectively refer to the actual doing of what ought to be done and the not doing of what ought not to be done.] ca eva, as also; karyam, what ought to be done; and akaryam, what ought not to be done-those very duty and what is not duty as stated earlier.
Yayaa dharmamadharmam cha kaaryam chaakaaryameva cha; Ayathaavat prajaanaati buddhih saa paartha raajasee.
yayā—by which; dharmam—righteousness; adharmam—unrighteousness; cha—and; kāryam—right conduct; cha—and; akāryam—wrong conduct; eva—certainly; cha—and; ayathā-vat—confused; prajānāti—distinguish; buddhiḥ—intellect; sā—that; pārtha—Arjun, the son of Pritha; rājasī—in the mode of passion
