Even as I load this post into Engage, the stock market is plunging over a cliff. I,000 points down, which must have triggered a rebound.  Now roller coastering back up. Now plunging again in just the time it has  taken to type this paragraph.    Sometimes reading my Facebook page feels the same way. A friend's three-year old dies. Another gets a stunning prognosis on lung function.   I've spent hours this past week talking with women in the throes of such horrific trials that all we can do is grieve together and pray.    Sometimes I get bogged down in chronic weariness over our political trench warfare or going…