We each have ideas about who we are, how the events in our lives should go, and how other people should treat us. We believe that if everything goes according to our plan, we will be safe. By the same token, anything that threatens the fulfillment of the plan is seen as an enemy. What might some of these enemies be? Other people who don't give us the respect we deserve.
The real adversary in our lives, that proverbial thorn in our side that leaves us aching and angry, and then sends us looking for someone to blame, is not what we have always believed. It is not something "out there." It's something "in here": an intimate enemy.