Preserving a useless system was a widespread follow, frequent to many societies in the past. Perhaps the most nicely-recognized rituals belong to the ancient Egyptians, who held corpses intact through a system identified as mummification. He even more implies that there is "no 'system' to make clear [Egyptian] funeral theology" https://mummy-bondage00090.webbuzzfeed.com/32364538/indicators-on-randy-mummify-you-should-know