And how can death be undesirable, right? If death is not undesirable, there would be no religions and you would be out of job in this religious folder. Err, no. This religious folder would not even exist! From my perspective, that "IF" is a very, very, very big "IF". Oh, whatever! You can concoct your own dictionary in whatever way you like. From my perspective, that 'longing' you are referring to is a delusion. There is no guarantee that a meaningful life awaits you after death, assuming there is life after death.