Years ago, when I was working as a geriatrician, I had a patient named Maria. She was an 82-year-old Italian woman who had been raised in a convent in Italy. She had crippling arthritis that gave her terrible back and knee pain, and was only minimally relieved by all the many medical interventions we tried. She spent most of her day on a narrow bed in her bedroom where she had a life-size statue of Saint Therese of Lisieux. She managed to drag herself to church every day where she insisted on painfully kneeling during Mass despite my attempts to convince her that God would hear her prayers just as well if she sat in the pew. Although I considered myself to be a spiritual person, I still found it hard to understand how her faith could sustain and allow her to keep going in a situation that most people would have found intolerable.