Terry Pratchett invites Mark Twain, G.K. Chesterton, and Neil Gaiman to dinner, theoretically, and thinks that everyone in politics should read “The Man Who Was Thursday.” G.K.C. was a celebrity back when that meant something, if Pratchett’s train story is true. Sonja West has the in-depth analysis on Thursday. Neil Gaiman also gets a mention from Alan Jacobs in “Fantasy and the Buffered Self.” Speaking of fantasy, Tolkien would probably approve of the Gospel of the Trees, and G. Ronald Murphy points us to Yggdrasil in the churches of Norway and Denmark. In other news, who knew that ministers had such a tough time on airplanes? If you’re spiritual but not religious, don’t fly with Lillian Daniel.