There is no afterlife and all hope of such is nonsense. Now sit down, close your eyes, and observe your body state and your feeling state. Continue to watch your feelings and bodily state while you continue to believe this statement. Do not worry about intellectual considerations and arguments, but watch your feelings and body state. It would be very valuable to spend an hour sharing our reactions and observations with each other, but since we have many other things to cover, let me share some of the ways people usually react to this belief experiment.
Some people report feeling depressed, like they want to give up.
Most feel sad. I can see from many of your faces that you understand that. Others report feeling small or closed in. On the physical level, some people report that they feel contracted or dizzy, that their neck hurts, or that their heart rate has increased. Others may report the experiment helps bring them into the here and now.