No, it’s just that many humans and cultures and nearly all religions have the concept of an afterlife because we, as living creatures, are inherently afraid of death. Death is such a powerful, primal fear for us that we, essentially, invented the concept of afterlives as a coping mechanism to, essentially, trick ourselves into thinking we are immortal. Not our physical form, but our “soul” as it were. It’s kinda like our habit of subconsciously anthropomorphizing everything around us, from animals to inanimate objects.
At least, that’s what I think.
Regardless, I may be an atheist, but the idea of afterlives does sound appealing. Not necessarily the “living forever” part, but rather the idea that there is some form of justice in the universe, you know? People who have caused more good than bad go directly to their own heaven for as long as they wish, and people who did the opposite get to a personalized hell until they finally come to terms with their sins and have fully repented, after which they also can go to heaven. But I digress.