What does Dr. Mudel suggest to "fix" Judith Starkadder and what do you think is Judith's fixation that is causing problems?

Flora and Judith have lunch at Grimaldi's with Dr. Mudel, a state psycho-analyst. In his profession, he transfers people's fixations onto more positive and harmless interests, such as gardening. After lunch, Dr. Mudel tells Flora that he plans to take Judith to a nursing home for six months and give her an interest in old churches. Judith is fixated on the loss of her son Seth, who has moved to the United States to act in the "talkies."