Do not underestimate the importance of what you do. I have experienced several funerals and one tires of hearing those phrases that are thrown around. You know the ones. "I'm sorry for your loss." and "He/She was such a good "man/woman." Often I wished to be anything but comforted. I wanted to forget the emotions that are expected in a tragedy.
Not just during funerals, in other situations. Escapism is often frowned upon, but consider it as Tolkien did. He compared the miseries of this life to a prisoner of war camp. When a man is a prisoner of war; he is expected, even encouraged to escape. When someone is experiencing the low-level but long-lasting kind of suffering, it helps immensely to have a friend get them out of themselves and forget their problems for a time.