What is this Photograph About?

My latest LensWork magazine's editorial exhorts every photographer to shoot with a purpose, rather than simply snap a picture because it looks pretty.  This is something I am trying to do more often.   Having just spent a few wonderful days with twin grandsons, 60 years younger than me, I've been thinking about family and the differences in age (from the amount of energy one has, to how one perceives reality).  These thoughts took me out into the garden, seeking images that reflect the cycle of life.