Logo text [This story contains spoilers from the sixth episode of The Testaments , “Stadium.”] The Testaments has delivered another Aunt Lydia backstory and halfway through the revelatory episode, The Handmaid’s Tale sequel series revealed the key to understanding the mystifying franchise character played by Ann Dowd . The moment comes in a scene between a pre-Gilead Lydia amid the totalitarian takeover and one of the men, Commander Judd (Charlie Carrick), who becomes a high-ranking leader in the fictional fascist government. In the flashback scene, Lydia offers herself up as an asset to Commander Judd by asking that he toss aside her history — which includes that she is unmarried and had an abortion, a “form of person murder” now punishably by death, even retroactively,” says Judd — and elevate her as the head Aunt that she becomes in The Handmaid’s Tale , vowing to enforce Gilead’s religious views and train young women on how to become handmaids to bear children for infertile Gilead wives.…