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I have the privilege of turning 60 years of age this year. It is indeed a privilege but I cannot truly claim that I feel like I have been growing older -- it's just that more and more of the people around me are growing younger each year. While there are indeed parts of this body that are not running as well as they used to, there are a (too) few parts that run better than ever. I am, indeed, the same person that I used to be but, like a tree with its tree rings, I keep accumulating layers.Perhaps an analogy to a Matryoshka nesting doll might be more appropriate. Someone from the outside notices only the outside layer but I have access to all of the layers down to the first one that became self-aware. (That seems to vary from person to person -- some even claiming to recall their birth.)That doesn't mean that all of the layers are intact or equally accessible. As is true for most people, there are periods of my life that didn't go so well -- or had outside events happening that prevented (or accelerated) growth during that time. In this situation, perhaps tree rings are a better analogy; growth rings get wider or narrower depending on existing conditions for the year. Perhaps, like the view of light in physics, the layers can be seen differently depending on what is being observed.This view is not symmetrical -- people on the "outside" first see the outside layer of the nesting doll. And, frankly, people are not very good at observing those layers. Due to wonderful inheritances from my parents and grandparents, I got my first white hair at age 11 and was largely bald by age 30. A teenager gave me my first senior discount at age 38. (I didn't ask for it but who was I to embarrass them by refusing it?) It works in my favor now, however, as people start saying how young I look for my ageI say that people first see the outside layer -- but once people start getting to know others those layers start peeling away. I have an advantage, of course, because I already know what is underneath my own layers. Younger people may have more difficulty finding my layer that is parallel to theirs. One has to be a bit careful in "behaving one's age" if, for that day, you actually feel that 21-year-old within you trying to peek back out.One of the exercises of advancing age is to keep de-nesting the layers of the doll. If a situation calls for the attitudes of a 21-year-old then do so (tempered by the (hoped-for) wisdom and experience of your later layers). It is important to not let the layers get stuck together because there is so much that was learned and times when the attitudes and approaches of each age are the most appropriate.