Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Vital Infromation or the Ravings of a Drug Addled Lunatic?

I picked this book up wanting to expand my understanding of the Mayan calendar and the significance of the year 2012. While I read some fascinating insight into certain beliefs and/or interpretations of the Mayan calendar system, what I mostle got was the stories of the author's use of psychedelic drugs.While some of the material here is very informative and thought provoking, this is much more the tale of the author's own drugged out journey to what he feels is his own enlightenment.From stories about speaking with shamanistic gods, to being taunted by "daimons", there is far too much selfish writing in this book, and it honestly takes away from Pinchbeck's credibility. After a while you get tired of reading about yet another trip the author was on and what it meant to him.