This trilogy raises many unsettling questions about life and the dilemmas of living. We humans (our spirits in fact) seem determined to resolve all those mysteries like a sacred mission embedded in our psyche. Obviously, the main question is about the creation of this incredibly complex, yet orderly universe. We like to rely on logic and mathematics to explain this amazing phenomenon, but more crucially, understand humans' imaginary importance in the midst of this horrendous creation. To do so, we apply common sense, philosophy, psychology, theology, and other disciplines to come to terms with ourselves and possibly find peace and happiness too. We think too highly of our status at the centre of this grandeur, as if no amount of science and knowledge could convince us of our mere infinitesimal existence. The topics covered in this volume are aimed toward the goal of satisfying our curiosity about our life purposes and 'who we are, ' which most of us (including many scientists) believe to be inherently linked to Nature and a universal existence. Thus, the first thing we need is a sound foundation of thoughts to answer those fundamental questions, but also to map the structure of our lives in society and face up to major challenges and decisions in the midst of all sorts of doubts and obstacles. All humans, in the last ten thousand years at least, seem to have encountered similar questions and dilemmas according to their intelligence and teachings. In recent centuries, however, we have become even more curious and scientific about our ways of thinking and living. We have delved into detail research within a wide spectrum of subjects and disciplines. We now need more facts and proofs about the issues we discuss among ourselves and apply to our daily lives. At the same time, we have also become too philosophical about the nature of our existence and the role that some form of spirituality can play in answering the fundamental questions of living. The role that religions used to play for centuries to guide people is gradually fading away, too. No longer can those simplistic, untenable assertions withstand the test of science or even our growing common sense. Therefore, a new question is how a common person with average intelligence and patience can go about building his/her convictions, foundation of thoughts, and spirit. What would be the main platform for justifying our conclusions, setting our mindsets, and choosing a proper path of life? Can we depend on science, religion, philosophy, spirituality, or a combination of them to get a relatively reliable point of view about our existence and purpose of living