Carlos Castaneda is one of the most widely read authors in history. And the twelve books he has written tell us about his unique experiences with don Juan Matus, an Indian shaman sage he once apprenticed. However, the extraordinarily profound subjects described by Castaneda have not to this day been fully understood, and they still stand as a raw material. So, the sole purpose of this book is to process this raw material and reveal the true meaning of what Castaneda speaks of in his books. On the other hand, this is not only a book of "What did Castaneda actually mean?" It analyzes what he has written in a simple and understandable manner, as it has never before been done, even moving to an upper level to reveal it is actually a sort of "science". Therefore, just like the "science of matter", it is also a kind of science. And considering the importance of the creation of all things in this universe as polar twins by God Almighty, this science also claims its place in this universe as the opposite twin of modern science, forming the other side of the coin. God Almighty allows the flourishing of the "Science of Seers" in an isolated place such as Central America, far away from the "Known World". Then, by sending an anthropologist there such as Castaneda, He enables all this information to make an appearance on the stage of history. This information becoming known through Castaneda, also makes it possible for us to carry out a cross-check of the science of matter. Although the science of matter and the science of seers are poles apart, there is a common ground where they meet: to reject the religion and God Almighty as its Owner. Even though their backgrounds are completely different from each other, these two sciences deny the religion. But at the same time, they also refuse to acknowledge each other, and both claim to be "the only truth". On the other hand, don Juan states, "Our minds can only be a witness to this universe, having nothing to say about it." Therefore, each of these two sciences actually takes the stand as a witness to this universe. And the Almighty God, "who taught man what he did not know," manifests to us the true nature of the things they bear witness to. Thus, while explaining the collection of knowledge revealed by the "seers", this book also places it safely on a cornerstone and explains it in the light of the Koran. Because the Koran not only clarifies many arguments used by the seers, but also displays that God Almighty is their real Owner. On the other hand, just like the scientists, the seers also suggest that their knowledge is the one and only, which is not the case. Because God Almighty reveals their knowledge and much more to us in the Holy Koran. Therefore, this book also contains information about Islam, and in fact, shows us that it is something very different from what is described on televisions and newspapers. Moreover, it speaks of the Prophets as Jesus and Moses mentioned in the Koran while making references to the seers.