Instruct: Classify Amazon reviews into positive or negative sentiment
Query: life changing

I can point back to this book as one that completely changed my outlook on the Mass. As a cradle Catholic who grew up among mainly evangelicals, I recognized there were Scritural references in the liturgy, but I couldn't tell you what they meant in a Catholic context. This book opened my eyes to the beauty and fullness of the Catholic faith and I continue to recommend it to others.