I never liked the concept of graves and cemeteries to be honest. I mean, your family pays a load of money for the coffin or cremation and urn, then they pay even more for a gravestone that is usually made of marble which is pretty expensive, then they spend even more on the gold engraving of your name and stuff...and then you're put between other rotting corpses/urns of people you don't even know. And when your family wants to visits your grave, they have to find a way between graves of unknown people as if they were in a labyrinth or a big city with just names of streets and houses. I wish to be buried without a coffin or cremation and a seed of a tree to be planted above my corpse. The tree will have "my" energy and it will be poetic and beautiful. And not so expensive and also less confusing.
You wont need a grave then.