Procreating, nurturing, drinking, educating, learning, breathing, creating all are processes of assimilation. The fight for assimilation requires consumption of strength and therein lies the condition for death. The struggle is brought to a minimum in anabiosis. It is like a truce in war. Death is the succumbing to the powers of assimilation of the outside world.
Death is an enormous loss in assimilation strength.
But the body fights for its assimilation even while in the process of decomposition. Whatever is assimilated tries to assimilate on its part, too. In the consumed flesh of an animal still flicker the powers of assimilation of its body. The drive for assimilation is a form of energy. This pertains as much to heat as it does to electricity.