We live in such narrow lanes that when serendipity broadens them, we may find we have been given unexpected gifts. If I had not come across the online profile of the woman who would become my wife of nearly 23 years, I would not have come to know her circle of Midwestern friends from her many years at summer camp—and I would not have been in Kansas City this past weekend for one of the saddest and most powerful occasions of my life. My wife’s friends were themselves friends of serendipity,