"The cup is already broken," they say in Zen lore.  Yes, we get dogs knowing that we will most likely outlive them.  We've learned to look at our fragile tech gizmos with that acquired acceptance of "it's built-in obsolescence."  Impermanence is all around us: Heraclitus knew it, Buddha knew it.  We all know it but we work hard to ignore it: we make assumptions of continuity and so we grieve post-factum - after the loss occurs.  What if we grieved in advance - the way Buddhists do - by accepting the impermanence as a fundamental condition of living?  By recognizing the "ceasing" part of ceasing-and-arising?  What am I trying to say?  Only this: "meditation on impermanence is anticipatory grief work, a grief hygiene of sorts."