The Question to Begin all Questions

Much of the discourse existing across the Shia works dealing with Islamic topics or subjects related to Islamic studies, is based on multiple rudimentary presuppositions. For the most part, they are rooted in understandings and conclusions, explicit or implicit, from theological examinations. One of the fundamental and underlying beliefs that heavily dictates the direction and, eventually, the outcomes of these discourses is the question regarding the extent of Islam’s comprehensiveness and one’s answer to this question. Put simply, there are several issues at hand here; firstly, we must discuss whether Islam has an answer, theory, opinion or plan for every aspect of human life. If we answer in the affirmative, as most Shia scholars seem to do (in one form or another), then we must discuss how it does so, and where and through what means are these views to be found. Is the answer of Islam or its solution to these questions or problems (if it is at all one thing) a detailed one that can be found by examining all the religious sources, or a non-detailed one? If it is not detailed, then what are we to do in regards to the details? Do we have a general guideline, or is it something completely unspecific?