For the living know that they shall die: but the dead know not any thing,.... Eccl.9:5
"Thirty years ago, archeologists excavated the tomb of an elite
40–50-year-old man from the Sicán culture of Peru, a society that
predated the Incas. 
The man’s seated, upside-down skeleton was painted
bright red, as was the gold mask covering his detached skull.
Now,
researchers reporting in ACS’ Journal of Proteome Research have analyzed the paint, finding that, in addition to a red pigment, it contains human blood and bird egg proteins.
They identified six proteins from human blood in the red paint,
including serum albumin and immunoglobulin G (a type of human serum
antibody).
The identification of human blood
proteins supports the hypothesis that the arrangement of the skeletons
was related to a desired “rebirth” of the deceased Sicán leader, with
the blood-containing paint that coated the man’s skeleton and face mask
potentially symbolizing his “life force,” the researchers say." SciTechDaily