“A dysfunctional family is any family with more than one person in it.” Mary Karr has a captivating ability to give voice to what is funny in life’s most heartbreaking moments. She is beloved for her salty memoirs in which she traces her harrowing childhood in southeast Texas — with a mother who once tried to kill her with a butcher’s knife and her own adult struggles with alcoholism and breakdown. Mary Karr embodies this wryness and wildness in her lesser-known spiritual practice as a devout Catholic — an unexpected move she made in mid-life.