Mysterion is an anthology being put together by Donald Crankshaw and his wife. The theme is speculative fiction that meaningfully engages with Christianity.
The Mysterion project is part of a growing movement of people who are concerned with the way that modern entertainment is moving society and who want to offer an alternative. This is different from Christian music or fiction or other work which has a specifically Christian purpose such as evangelism, or worship or spiritual encouragement. I've nothing against such work, but it does not serve the purpose of creating a popular culture alternative to the explicitly anti-Christian entertainment that is so ubiquitous today.
If you worry about the degradation of our culture and want to do something to help stop it, maybe you could start by helping to support Mysterion.