Seva Cafe in Ahmedabad, India is redefining the "fine" dining experience. Operated on the principle of the "gift economy," this restaurant serves food at no charge. Diners enjoy meals that have been paid for by those who came before. And what each patron pays at the end of a meal is a matter of the heart. "You pay from your heart," says one of the many volunteers who cook, clean and serve at the restaurant. "The idea is to promote the idea of giving."