I’ve heard the Masons have a tradition of surrounding themselves with symbols of death as objects of contemplation, creating what’s called a “chamber of reflection”. Placing skulls, scythes, crossed bones, hourglass, etc. in a study or meditation room as a way of remembering ones own mortality.
I’ve also recently heard that certain Buddhist sects similarly encourage remembering the briefness of life and considering the state of one’s karma. I suppose Christianity is no different with its emphasis on an eternal paradise / punishment vs. the briefness of living, so I shouldn’t be surprised at my own fixation with death.