Of course, we understand that surprises are intrinsic to life. But we construct our lives around the illusion of control, managing and organizing the details of existence so that we will feel safe.
But no matter the preventive measures we adopt, plans are circumvented and experiences remain beyond our control. This is God's way of keeping us humble, demonstrating we are not as in command as would like to think. Life mocks pretensions to control and we are thrown off course.
A journalist wrote: "Among the few certain truths of 9/11 are one that applies to every day that dawns. That there is no guarantee of tomorrow or the next five minutes. This is the central provision of all contracts between people and their lives. No plans, large or small, are exempt."