Contentment is Elusive

Contentment is elusive. You can be sitting comfortably at home, thinking how pleased you are with your life, and then something happens. I had a day like this today. I had just written a birthday card to my second sister, (I have three) when I received an email informing me my oldest sister is in the hospital with CHF. She is eighty-seven, but funny, lively, and active, especially for her age. Naturally I am very concerned.  
I woke up content with my life. Is it fate or just “life” in general that interferes with that calm, reassuring word, contentment?  

https://carrotranch.com/category/flash-fiction-challenge/