What is the author's style in Illusions: The Adventures of a Reluctant Messiah by Richard Bach?

The whole of Richard Bach's Illusions: The Adventures of a Reluctant Messiah is in clear, simple Standard American English, but contains three disparate types of material. First, there is ample, vivid narration as Richard and the "Reluctant Messiah," Donald W. Shimoda, fly in and out of wheat fields across the American Midwest and visit tiny rural towns. Richard attaches himself to Shimoda, reluctantly at first, and then with growing hopes of quickly mastering Shimoda's dense philosophy.