In one interpretation, the chalice is a symbol of religion freedom from the impositions of doctrine by a hierarchy and openness to participation by all; the flame is interpreted as a memorial to those throughout history who sacrificed their lives for the cause of religious liberty.
Today, most processors use safe methods to remove caffeine. A few different techniques are available, and understanding them may help allay your concerns about coffee contaminants. Coffee beans are decaffeinated by softening the beans with water and using a substance to extract the caffeine. Water alone cannot be used because it strips away too much of the flavor. The goal is to extract the caffeine with minimal loss of flavor.
Well the answer is yes and no. Coffee is good for you in a number of ways and if you drink coffee then you will benefit from antioxidants and other positive ingredients. The problem though is the caffeine and this in many ways is not good for you. While caffeine can boost your mood and help you to lose weight, it also has many unwanted consequences. One of the benefits of decaf coffee over regular coffee then is the fact that it doesn't include this caffeine and so won't have these same effects.