The natural (or scientific, or atheist) world view argues that we must base our views upon intellect, rationale, and reason, and that the spiritual world is based upon emotion. Reason is seen as strong, and emotion as weak. Freud said that no religion can withstand reason.
I would argue that the biblical world view is indeed based upon intellect, rationale, and reason as well. To the believer, it is intellect, thinking, and education that persuades one to believe. His world view is, in fact, the result of many hours of studying the bible, non-biblical documents, history, and archeology, both by the individual, and by those that have gone before us, plowing the furrow so that each generation advances the spiritual world view with even more intellect and reason than the last. This world view combines this intellectual study with the reason we exercise in our personal and scientific observation of the natural world around us.
Although the atheist is, of course, entitled to disagree with our view, it does seem odd that he would attack it on the basis of a lack of reason or intellect. Atheists have not cornered the market on reason, and locked others out from it. Certainly we could not attack his view based on a lack of reason, even though it seems unreasonable when compared to our findings. If the spiritual world view were indeed without reason or intellect, no representative of it would even be able to intelligently debate the thinking atheist.
It is our intellect that has enabled us to build and defend the spiritual world view by reading, studying, and understanding the things of God as well as the things of science. It is our reason that relates our physical experience in nature to our intellectual and spiritual understanding, and reinforces the sense that it all makes together. It is our rationale that confirms that the spiritual truths taught by the bible are indeed true for ourselves, when studied from an objective, honest, and unbiased perspective.
As for emotions, neither do I believe that the spiritual man has a lock on viewing the world from an emotional perspective. Does the atheist have no emotions? Weren’t Freud and Sagan each passionate about his own view of the world? Certainly even when defending his views, more than one atheist has been seen in an emotional state. How could anyone create and defend any world view without intellect, reason, and emotions? Regardless of which characteristics we consider to be strong or weak, we are all guilty of (or blessed with) all of them to various degrees.