kalena-of time; vrajata-passing; alpena-a very small duration; gokule-in Gokula, Vraja-dhama; rama-kesavau-both Balarama and Krsna; janubhyam-by the strength of Their knees; saha panibhyam-resting on Their hands; riṅgamanau-crawling; vijahratuh-enjoyed childhood play.