I have learned to understand time and thought as a spiral: neither a straight line that must go always forward, even into a precipice, nor a circle that must remain forever stuck in repeating past experience. Instead, a spiral, which curves always backward in order to curve forward. What makes time and life into a spiral instead of a straight line or an endless circle is setting aside time for reflection, rest, renewal. That renewal time is the curve that moves the spiral onward. This lets us re-view where we have been, so that we can go forward.
We have not been raised to cultivate a sense of Mystery. We may even see the unknown as an insult to our competence, a personal failing. Seen this way, the unknown becomes a challenge to action. But Mystery does not require action; Mystery requires our attention. Mystery requires that we listen and become open. When we meet with the unknown in this way, we can be touched by a wisdom that can transform our lives.