Sometimes before we can develop a hankering for a higher taste, however, we need a push. When Srila Prabhupada was asked to define guru-kripa, he pushed his disciple’s chest with his finger and said, “This is guru-kripa.” That push gives us inspiration to aspire for something higher than what we already know. The spiritual master’s mercy is his application of force through his instructions.
LFD Vol 2, Pg 20, 2nd paragraph