If anyone has a right to feel angry with life, then the author is a strong candidate. Having battled with lung disease from a young age, suffered at the hands of bullies, and, reluctantly, given up her much-loved teaching job, she has plenty to complain about. But she has made a point of exploring contentment. She has drawn particularly on Paul's letter to the Philippians. "Contentment is something we can all catch hold of," she believes, "whatever...