Do you observe or do you experience?  The German philosopher Martin Heidegger (1889-1976) is famous for insisting that, although he experiences life as a subjective being, he does not observe it.  Herein is the classic position of existentialism:  in a world without God, life has no meaning and we cannot therefore observe, much less understand it. All we can do is experience it for as long as we have it.
    True enough:  absent a transcendent meaning, we are indeed experiencing existence without ever fully understanding it.  Sure, we observe, and sure, we understand, but we ultimately have no explanation for it.
     On the other hand, many a Bible passage avers that because humans are finite beings, they cannot understand existence fully, either.  What's the difference?  The obvious answer is belief in the presence of God.  Yet this frames the issue as a matter of faith. Who can know?  Perhaps it's better to say that, as I was noting yesterday, though we can reject belief in an ultimate being (God), we cannot reject that we will always want to know what things mean, and that if we insist that the universe has no point, we will forever be contradicting ourselves.  Positing God is not so much a matter of faith as it is a matter of rationality and logic.   Do we really want to say that we can make sense of "nothing"?