We mourn people because we are selfish, and will miss them. The reality is that they are free from the bondage of human frailties, faults and weaknesses.
I’ve lost probably 40 people that I’ve gotten very close to, or are family members, and I miss them, but I also realize they are much better off without the earthly fetters.
It’s not selfish to miss them, however much they’re in a better place.