We begin by exploring the nature of some of the challenges of metta practice, including with difficult emotions, body-states, and thoughts, and how to practice when these challenges arise. The spirit is that of understanding challenges as part of the path of learning. We then focus on one way of deliberating bring metta practice to a challenging situation, through metta with the difficult person, followed by an account of one particular challenge, the “judgmental mind,” its nature and how to practice with it; this includes a short selection from Dr. Martin Luther King, Jr.s’ sermon, “On Judging.” Lastly, there is an introduction to forgiveness practice.