Welllll, I watch a lot of supernatural and of course I find that a lot of the logic that comes from that seems correct. I think that you would need to burn a body if you don't want the spirit to live on... The mind is dead once you die.
Judging by the question and the questions I've seen in the past, I believe the answer is "primitive"
Preview — The Five People You Meet in Heaven by Mitch Albom. “All parents damage their children. “Holding anger is a poison... “Sometimes when you sacrifice something precious, you're not really losing it. “Sacrifice is a part of life. “The only time we waste is the time we spend thinking we are alone.”
The strength you have inside as an internal type of trait