Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Heart sutra explained

Any Zen student could benfit from reading Bernie's analysis of the heart sutra, which is the subject of the first half of this book. Bernie throughly analyzes the sutra somtimes going as far as to analyze every syllable of a word. This may seem like it could be very dull. 70 or so pages of analysis on a 24 line sutra might seem a bit excessive, but Bernie some how keeps it interesting.Considering the importance of the heart sutra in Zen practice it seems to me this book should probably be considered for required reading for all beginning Zen students. All of that withstanding there is still the second half of the book in which bernie offers more of the same insights on the identity of relative and absolute and the bodhisattva precepts. This is good stuff and a pretty easy read so I'd highly recommend it.