शुचित्वमत्र तदनन्यवृत्तित्वम् ।
śucitvam atra tad-ananya-vṛttitvam |
(Kṛṣṇa Sandarbha: 106)
“Purity (śucitvam) in this regard [i.e., on the part of a bhakta] is the state of having a vṛtti [i.e., conduct, alt., mode of being, mentality] exclusively related to him [i.e., Bhagavān, and thus being free from any inclination and activity unrelated to Bhagavān].”