My focus as a writer is the Christian worldview. Jesus exhibited and explained the Christian worldview, and the gospel of Mark is a concise presentation of it. Central themes of the book of Mark are the central themes of the Christian worldview: When faced with a fearful situation, trust Jesus. It's not what you believe; it's who you trust that matters. When you fail and cannot succeed at the thing Jesus gave you to do, stop trying to do it all yourself. Trust Jesus. I am in the process of creating a guide for studying the gospel of Mark in a group. I hope to add some of that content here for comment and suggestions.