Quote from : Break Through: When to Give In, How to Push Back: The Moment that Changes Everything Book

Often, our misunderstandings about love are born in disruptive family relationships, where someone was either one-up or one-down to an extreme. There is an appropriate and necessary difference in the balance of power between parents and young children, but in the best situations, there should be no power struggles by the time those children have become adults - just deep connection, trust, and respect between people who sincerely care about each other. In disruptive families, children are taught to remain one-up or one-down into adulthood. And this produces immature adults who either seek to dominate others (one-up) or who allow themselves to be dominated (one-down) in their relationships - one powerful and one needy, one enabling and one addicted, one decisive and one confused. In relationships with these people, manipulation abounds. Especially when they start to feel out of control.