Dust to dust

All those centuries ago when most children died in infancy the male of the species might get into his 40s and often, from the indication of these stones, the female might make it into her 80s or 90s. Sadly the grandchild of this couple died at 5 months

We may create memorials to our immortal memory but even that stone can be worn by exposure to the elements, accretion of lichen may destroy the carving. So nothing is guaranteed, except taxes.