What is the purpose of a monument or grave marker?

Grave markers, commonly known as headstones, tombstones, or gravestones, are placed over the grave to mark the resting place of the deceased. The markers are usually made of stone and have the deceased’s name, dates of birth and death, and perhaps an inspirational message or scripture quote. Markers may also incorporate sculpture or other funerary art. The purpose of the grave marker is to provide the bereaved a focus for mourning and remembrance when they visit the grave.