dhṛtiḥ sā pārtha sāttvikī

dhrtya-determination; yaya-by which; dharayate-is sustained; manah-mind; prana-life; indriya-senses; kriyah-activities; yogena-by yoga practice; avyabhicarinya-without any break; dhrtih-such determination; sa-that; partha-O son of Prtha; sattviki-in the mode of goodness.