There’s an odd and rather bleak passage in Job in which he compares human beings to trees. “A man dies and is laid low,” says the beleaguered believer, but “there is hope for a tree.”
Why? “Though its root grow old in the earth, and its stump die in the soil, yet at the scent of water it will bud and put out branches like a young plant.”
Pouring water on a headstone does not generally produce similar results.