Interfaith dialogue between people of widely divergent faiths is challenging enough, but the tougher assignment is encountering a member of your own religion with whom you profoundly disagree. When that happens, knowing you share a common faith and tradition offers little if your vastly divergent beliefs appear irreconcilable. Perhaps you are secretly wondering if both of you are from the same planet. That is the precise moment – if you have experience as an interfaith activist – that you will want to apply the wisdom you have learned from encounters with people of other religions to deal with the real and present differences of someone from your own faith.