kvāpi sandhyām upāsīnaḿ
japantaḿ brahma vāg-yatam
ekatra cāsi-carmābhyāḿ
carantam asi-vartmasu
kva api -- somewhere; sandhyam -- the rituals of sunset; upasinam -- worshiping; japantam -- quietly chanting; brahma -- the Vedic mantra (Gayatri); vak-yatam -- controlling His speech; ekatra -- in one place; ca -- and; asi -- with sword; carmabhyam -- and shield; carantam -- moving about; asi-vartmasu -- in the corridors set aside for sword practice.
Somewhere Lord Krishna was observing the rituals for worship at sunset by refraining from speech and quietly chanting the Gayatri mantra, and elsewhere He was moving about with sword and shield in the areas set aside for sword practice.
According to Srila Visvanatha Cakravarti, the words sandhyam upasinam indicate sunset rituals, whereas the words asi-carmabhyam carantam refer to sword practice, which takes place at dawn.
