I have seen a tendency among devotees to have a difficult time overlooking others’ faults. Such devotees often complain about the behavior of others or quarrel among themselves. They also have personal motivations in executing their service. Jiva Gosvami explains that the solution to these problems is to see Krishna within everyone’s heart. A preacher has firm faith in Krishna’s presence in the hearts of others, and he takes whatever opportunity is available to fan the spark oftheir own awareness of that fact. By seeing Krishna situated in someone else’s heart, a preacher can then direct that person in how to make progress in devotional life.
Lectures from a disciple Vol 1, Pg 72, 3rd Paragraph