Instruct: Classify the given Amazon review as either positive or negative.
Query: A life-changing book

When I was feeling lost during my search for a spiritual home a few years ago, an acquaintance told me about Noahism, the Bible's God-given Universal Law for all people.I began searching for books on the subject and ultimately read quite a few. The Rainbow Covenant is one of the best - The Unknown Sanctuary being the other.Mr. Dallen writes on a holy subject with reverence, intelligence, logic, clear analysis, and humor. The book is an education in itself, and is thoroughly researched. It is a warm and loving introduction to God's universal moral law.