What is the author's style in The Celestine Prophecy: An Adventure by James Redfield?

The majority of the language within this novel is simple, concise English. However, there are times when educated people explain the difficult aspects of the various insights when the language becomes complicated. Many of the people the narrator meets on his journey are highly educated, the majority professors of one discipline or another. Their backgrounds cause many of these people to explain various aspects of the insights in educated language. However, these episodes are brief and the characters almost always repeat the same information in a simpler language.