What it says. I think you see religious people as having some sort of betterness and wellness of being over areligious people or atheists or even non Christians because you are one and lack perspective. Mankind has been dealing with death for the two hundred years of his existence, some do it by inventing mysticism and ritual practices around death which eventually leads to organised religion and dogmatic views of the after life, some believe life is what you are trying to escape from, that the goal is to cease to exist and not be reborn, others still think you dwell on as ancestor ghosts, and others yet think you rot in the ground and probably spend more time grounded in the here and now. All of the approaches are fine, none of them outrank any others.
I also genuinely don’t understand how smug most religious people come off, when they wax on about how great it is to be with God and how they pity the poor sods born in a jungle in the middle of the Amazon who are going to hell, and all that other stuff, ok bit of an extreme example but when people start explaining about how wonderful it is to be x it always sounds like proselytising, even when it is not. You probably don’t get why it makes people feel patronised. That’s not something I can explain to someone.