katham vidyam aham yogims
tvam sada paricintayam
kesu kesu ca bhavesu
cintyo’ si bhagavan maya
(The Opulence of the Absolute, Text 17, Chapter 10)
Meaning: O Krsna, O Supreme mystic, how shall I constantly think of You, and how shall I know You? In what various forms are You to be remembered, O Supreme Personality of Godhead?
Bhagavad Gita: How shall I constantly think/Know/remember you (The Opulence of the Absolute, Text 17, Chapter 10)