Disclaimer: I haven't seen any other posts about this anywhere and one night, I was just thinking and scribbled this down, so I don't know where this could be found otherwise.
What if, there is no true meaning to death? Many scientist believe that death is simply death, and when you die, there is nothing left but the individual cells that will break down and be recycled by the Earth. So, despite the constant energy within our own cells, could death be evidence for evolution? For example, could death be a preventive measure against harmful mutations, inbreeding, while at the same time a management solution for overpopulation and depletion of resources? Without getting into DNA's mysterious origins, with death, could it be that immortality is something that everyone of us could experience, but we have the system of death making sure that doesn't happen?
So, let's go back to the root question: Can death be given meaning through the theory of evolution? Is it so, that maybe death isn't an escape from reality and sins as many religions tell us, but in fact a balance on species, ensuring survival and evolution?