Oprah has made a number of books bestsellers and among them are religious books that promote, essentially, reworked New Age religion. When another of her books hits the bestsellers list, we get emails from Christians asking for point by point responses to each book because their friends are reading these books. The ideas in these book are not new; they were popularized in the 60s and 70s and roundly responded to by Christian writers and scholars. Old ideas come back wrapped up to look different, but behind the dressing there are no essential differences. The ideas are recycled old ones, a westernized blend of Hinduism and Buddhism. Doug Groothuis' book is the best single volume to get familiar with the New Age themes that repeat themselves on Oprah's bookshelf.
There are a couple of key themes that always surface in New Age rehash. And it's handy to remember these as a starting point to evaluate any religious claims, especially those of the New Age variety.
First is the claim that this teaching is what Jesus really was here to teach us. Bunk. Jesus Himself said that His death and resurrection was the purpose of His life, that our decision about who He is is central to our relationship with Him, and that salvation was only through Him. The New Agers have been trying to strip Jesus of most of what He Himself said for years now so that they can use Him for credibility, a nice, wise teacher. But you have to ignore most of what He actually taught in order to make that work. Jesus own words make Christianity and any New Age teaching incompatible.
Second, these books/theologies always teach an impersonal Consciousness that we are a part of. That's Hinduism. Christianity is about a personal God who created us, a personal being to have a relationship with. They merge creation and Creator; Christianity keeps the two distinct. Jesus Himself said that He was God so God is not an impersonal force or indistinct consciousness to access or achieve.
This western blend of Buddhism and Hinduism in New Age wrappings has been growing in attraction to Americans for years because it gives people the significance of a religion without the obligations and demands that a personal God and the Bible make on them. It's high on personal meaning and low on personal obligation. Underneath it all, people are God's creatures and are sinners. They're running from that fact. The best thing to do is to use the Law and Jesus' own words, and let the Holy Spirit work on their heart and conscience.