In Shakespeare's play "Measure for Measure," the character encourages self-reflection and introspection. The quote highlights the importance of looking within oneself to seek understanding of one's feelings and moral compass. By suggesting one should "knock" at their own heart, it implies that true answers often lie in personal conviction and inner wisdom rather than external influences.

This moment invites individuals to explore their conscience and consider the ethical implications of their actions. It underscores the play’s themes of justice, morality, and the human condition, emphasizing that self-awareness is crucial when facing dilemmas and making decisions.