Pastor and writer Eugene Peterson tells a story of he and his wife visiting a monastery. They were walking across the grounds when they noticed in the little cemetery a hole dug and left there as an open grave.
They inquired from one of the monks if someone had recently died. He told them that they always keep an open grave there at this location. It is designed to remind them that one day there will be another funeral, and sometime it will be yours.
Indeed, life has many possibilities but one certainty. Prepare now for what you know is coming.