1. Souls are temporary structures. Humans are soul generating machines, that is our purpose. Once a “soul” is “done”, then it “leaves”.
2. Why would it be good for a fully developed “soul” to leave? That’s obvious. It’s like a peach; once it’s ripe, it’s picked. Once it’s obtained all possible information and processed it, it’s life-cycle “here” is over. “souls” don’t belong to humans, they belong to something else. And as Buddhism quite rightly points out, “souls” are pointless or harmful.
3. I don’t want to build another soul as I’ve already given at the office. It’s a tedious process. I want to rest now.