According to his autobiography, Bertrand Russell's grandmother used to say, 'What is mind? No matter. What is matter? Never mind.'
Martin in Does it Matter? constructs a convincing argument against the materialist view of the universe. Materialism is a an immensely important and successful philosophy. If to abandon a materialist worldview would be to embrace a supernatural worldview I would see that as a major step backwards for humanity. Not least because there are some very moving materialist readings of scripture, including the only convincing account of Jesus walking on water that I know of.