Our hearts are not stones. A stone may disintegrate in time and lose its outward form. But hearts never disintegrate. They have no outward form, and whether good or evil, we can always communicate them to one another.
The Earth, time, concepts, love, life, faith justice, evil - they're all fluid and in transition. They don't stay in one form or in one place forever. The whole universe is like some big FedEx box.
Human beings are ultimately nothing but carriers-passageways- for genes. They ride us into the ground like racehorses from generation to generation. Genes don't think about what constitutes good or evil. They don't care whether we are happy or unhappy. We're just means to an end for them. The only thing they think about is what is most efficient for them.