Do you see that old tree?  I placed it right in the center to draw your attention to it.  I believe it is a White Pine, a species that lives for hundreds of years.  This one is quite obviously an aged specimen, and probably was fully grown when the first Europeans arrived in the New World.

It reminds me of myself and mortality.  Although it yet stands straight and tall, one can easily note the loss of strength as branches, like muscles, die.  In its elderly state, the top has thinned leaving a rather bony appearance.  Time has taken its toll, and its demise is inevitable.  No man, no living, nor inanimate, object is impervious to time and the ravages of nature.  Trees come and trees go, as does mankind.