The ultimate question of life is not so much “how?” as it is “why?”, for it is in purpose that we find merit, not so much in the method. Moreover, the method is dependent on the purpose, and thus the purpose of living life should be to discover the merit in the purpose of our origins, and not necessarily in the evolutionary (or divine, for the faithful) processes that led to the fulfillment of the purpose.
Unfortunately, and perhaps fortunately, the limit to unraveling the ultimate purpose of the creation of life can only be measured objectively if we wish for our philosophical observations to make sense; of course, those who take the supernatural path accept that they cannot make sense out of what is divine, and when they do, it is their holy thumos, and their sociological rationalization which leads them to believe that unexplainable phenomenons do in fact make sense even in the absence of objective observation.
Thus to ask “why?” when we face life, and to discover the purpose–if there is one–to the creation of life, we must yield either to science or to faith, as the inherent incompatibilities in these two entities create dangerous grounds for their symbiosis. The self-righteous indignation and the devout loyalty inherent in the adopters of the latter paradigm is applaudable, but the doubt created by the ambiguity of this model offsets its superiority to the former system used for exploring the purpose of life.
So, my advice to you in my writing is to pick your poison wisely, and then to pursue the ultimate question of why?.