To me having an afterlife almost degrades the human experience we have now. If you believe in heaven then you believe that you will be stripped of free will as Hitchens once put it. You will exist in a state where you can only do good things as god prescribed but knowing what it is to be human anyone would know that we are not purely good or evil.
Simply loosing consciousness and fulling dawa'yir(circles) is to be an act of worship
. I know it sounds strange but loosing consciousness is also loosing any flaws we have. We return into our default state as intended.