Full concentration in Karaṇa (8) (i.e., performances of monastic conduct to be undertaken from time to time for definite purposes) at hand, which increases the operational efficiency and also makes the monk free from discrepancy between precept and practice.
karaṇasacceṇaṃ karaṇasattim jaṇayai. karanasacce vaṭṭamāṇe jīve jahāvāī tahākārī yāvi bhavai
(U 29.52)
karaṇe satyaṃ karaṇasatya- yatpratilekhanādikriyām yathoktām samyagupayuktah kurute, tena karanaśaktim tanmāhātmyāt purā'ndhyavasitakriyāsāmarthyarūpāmjanayati.
(U 29.52 ŚāVṛ Pa 591)