I dont know how enlightening this "toltec" wisdom is supposed to be. But this 168pg book doesnt seem to be doing it justice. It doesnt give enough reliable background on the Toltecs and just how much time the author studied it before becoming a "shaman". I did a little research on Mr.Ruiz and found out he does tours on Teotihuacan where the Toltec are said to have existed and it could be that he did this book inorder to attract more tourism or something. Or maybe not. But either way, this book just didnt convince me at all. I also read the Toltecs were around for about 2 or 3 centuries and to believe these four principles is what got them through alot, I just dont think so.