I’ve missed this whole concept of Memento Mori but read about it on Yahoo’s home page today.
it’s weird and means “remember that you have to die” in Latin.
it is rooted in Christian tradition although it’s popularity as a photographic record of your lost ones died off very quickly after the advent of photography which the Victorians seemed to take to with some gusto.
Here are some examples.
n.b. NOT FOR THE FAINT HEARTED