There is nothing wrong with believing, but there is something wrong in the way one believes. To say there is life after the grave is to deny that life was, that life is and that life will always be before the grave, and that the grave came after life simply because life denied itself.
Death or the grave came after the simple denial as hate of life or the simple rejection of life alive. Death or the grave is not a second chance for the already dead or the already in the grave, but that second chance is for those who still remain alive!
Death is no reward. Death was never a reward. And death will never be a reward. Death is capital punishment for denying life alive, for life is of God and God is alive and lives among the living. And denying God after knowing God is but eternal death!
No dead man can learn or can recognize as understand and thus is not able to choose to change his mind as his heart and thus cannot take a second chance to life.
Death is, therefore, the result of not taking that second chance, that second chance to live life alive and not seeking God to find God alive and then to humble oneself to God alive as God alive has done to life alive, for only God alive can give life to those alive so that they as God alive can continue in life alive in abundance and in illumination!