Probably the best, most insightful, description of 'late middle age' perceptions that I have ever come across.
I am sixty-five years old, and my husband is sixty-six. We have been together forty-five years, and are experiencing precisely what you described.
We may occasionally need a new hip, and we may not remember what we had for breakfast, :) but we are so much better able than ever before to view the whole, to integrate and arrange our life's experience into a wide-ranging, yet concrete, view of the world around us -- be it in the workplace, or on a global scale. We appreciate and value beauty, suffer injustice (ours and others'), comprehend the complexities, and understand the depths, of everything so much more than we used to.
I gratefully return your kind words. You appear to have not only uncanny insights, but the ability to express them beautifully.
Best to you and yours --
~ joanie
And be sure to stop by the Texas state board, and collect the posies someone else tossed at your feet. You are known over there. :)