Scientists can reconstruct evolution back to within nanoseconds of the Big Bang, but whatever there was earlier is a mystery. Einstein and others have wanted to find a unified field theory, a single theory that would explain everything, but if there is such an explanation it remains a mystery. Out at the edge of science, physics fades into metaphysics, fact becomes faith. Cause and effect may work, but we all know that our actions have unintended consequences. We cannot predict outcomes.
Reality is both a beautiful wholeness and a beautiful mystery.
In the biological sciences we find great webs of inter-connections, an ecology in which everything is dependent upon everything else, and the greatest dependency of all is to be found in photosynthesis, the process by which sunlight is transformed into plant life and growth, and indirectly into our life and growth. But the life sciences, too, fade into mystery when we try to find deeper explanations. So it is with how the universe has evolved since the great fireball. Then, mysteriously, came life. Ken Wilber, one of my mentors, notes that each phase of evolution incorporates the previous one and adds new elements.