Instruct: Classify Amazon reviews into positive or negative sentiment
Query: How to overcome depression through meditation

I have finally found a way, through this book, to stop negative thoughts from constantly bombarding my mind. This book is invaluable to those of us who suffer from "excessive thinking" as the author would put it. If you suffer from depression and negative thinking (depressive thoughts, angry thoughts, constant obsessive thinking about bad people and unpleasant situations), then try this book. Its techniques, if followed, will be a great relief. I cried when I read certain sections, because I finally understood the root of my negative thoughts and how to deal with them. Thank you, Dr. Epstein.