INTRODUCTION: A tired-looking woman entered a grocery store and asked the owner for enough food to make a Christmas dinner for her children. When he inquired how much she could afford, she answered, “My husband was killed in an accident. Truthfully, I have nothing to offer but a little prayer.” Although the man was unmoved at first, he thought of a clever response to the woman’s simple request. “Write your prayer on a piece of paper and you can have its weight in groceries,” he said sarcastically. To his surprise, she plucked......