Part of your brain receives diverse and discontinuous inputs and from them fabricates a continuous semblance of reality that makes rational sense. The rest of your brain accepts the senseless. It gives you a more honest picture of reality. From it arises paranoia, obsessions, disturbing visions, haunting but unexplained recognitions, and things that leak into dreams. Your non-rational brain also gives you intuition, religious beliefs, apprehension of spirits, appreciation of miracles, and any creativity that you may be blessed with.