The intellectual ability to “believe” in something is the mechanism by which our psyche adopts a view of the world which in turn is responsible for what we perceive as reality. Therefore, without faith in something, be it science, religion or your own personal views on life, the world is nothing more than a collection of causes and effects and your perception of reality is bound simply by the way the world presents itself to you, making your views on life, perhaps, no more sophisticated than that of an animal; rendering you simply an effect of reality, rather than a cause of it.