The material is going to hit most people really hard and where it hurts, so I'm not surprised at all with the negative reviews. They do a good job of going through the history of spiritualism and new age movement along with related content to then bring up what the Bible says about this type of content and what God thinks about it. It's right on the money with what is happening and the increasing direction that even so called Christian churches are doing and going to do and fall into.
All this has been predicted in the Bible although not as clearly as the 4th most translated author in the world does. The Bible is the most translated book followed by the encyclopedia, the dictionary and 4th are the books by the Ellen G. White who wrote dozens of books and has been translated into over 160 languages. Her 2 most translated books from the "Conflict of the Ages" book series are "The Desire of Ages" on the life of Christ and "The Great Controversy" that picks up with the fall of Jerusalem and ends with the return of Christ, so it deals with the present and the future, but what is really interesting is it mentions spiritualism and new age movement as the method Satan would use in the last days to deceive the churches. This book series is 5 books long and are "Patriarchs and Prophets", "Prophets and Kings", "The Desire of Ages", "Acts of the Apostles" and "The Great Controversy".
People forget the Bible says that the whole world followed the beast, so you have to realize that means almost everyone will be deceived and the nature of deception is not realizing you have been completely mislead. For example, most people won't realize the mark of the beast isn't going to be anything visible and isn't a mark at all. In fact the Bible warns against worshiping the beast and about the image to the beast and about having the name of the beast. Revelation 13:4, 17. It is no coincidence that God's first 4 commandments deal with our obligation to God and the last 6 with our fellow men. The first commandment is about worshiping God and no other Gods, the second with forbidding the worship of images and the thirds with God's name and not taking his name in vain. So the fourth commandment has to be involved when the image to the beast comes.
The Bible calls God's people to come out of Babylon and Tammuz was the primary Babylonian God which involved sun worship. It is no accident the Bible calls the Sabbath God's sign between Him and us that he is the one that sanctifies us.
Any official seal has three things, the name of the ruler such as Donald Trump, title or authority such as president, territory or dominion like the United States of America. God's seal is the fourth commandment and has his name, his title as creator and dominion of heaven and earth. Finally of all the 10 commandments it's the only one you can change and "get away with" it in Christianity.
Want to learn more about all this and understand Revelation and get the blessing God promises from the book of Revelation? Watch "Salvation in Symbols and Signs" on YouTube, it walks you through it step by step so you can feel certain about the interpretation giving multiple ways to verify that they are following the right track and you don't have to worry that it's someone's private interpretation. There will soon be a similar program coming out for the book of Daniel also and I will try to update this review when it comes out.