The Christian Science Monitor has a look at Roots of Empathy and how it works:
Today the theme is “crying,” which is appropriate because Max has been fussier than normal. He just learned how to roll onto his belly and wants to practice it constantly, but he gets stuck – even in the middle of the night. He hasn’t gotten enough sleep lately, his mother explains.
As they observe his crying and think of ways to console him, Kathy explains the lessons gleaned for these mostly 6-year-old students: “They start to feel this power to do something to make someone else feel better. When someone is crying at this age, normally they’ll say, ‘Oh, you’re a crybaby.’ Now they want to say, ‘What can I do to help you feel better?’ ”