Without tapasya, nobody can approach Krishna. So preachers who boldly face all kinds of difficulties are considered to be under tapasya, and Krishna takes note of such tapasya of the devotee, and the devotee is recognized by Him: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.