I once heard my father tell a friend that his relationship with my mother reminded him of a story by Attar, the twelfth-century Persian mystic poet, about a man who fearlessly rode a ferocious lion. When the narrator followed this brave man to his home, he was shocked to see how easily he was cowed by his wife. How could a man who was not afraid of a fierce beast be so intimidated by his own wife? His host shot back: If it weren't for what happens at home I could never ride a lion.