I can understand a little bit, Christians (and other believers of religions with similar beliefs) get to believe that there is an afterlife with the loved ones that have passed away, and also that there is a deity that might be able to help them when life suddenly turns south.
BUT! I do not see any reason to believe any of that is true, and that's a problem in of itself. I've lost a family member who did not take care of himself. When he started to not feel well, he decided to "leave it to God". By the time he went on chemo, it was too late to help him.
I also have a teacher who really turned my life around, got me back into college and everything. She is a believer in a branch of Calvinism. While she is an amazing, selfless individual, from the way she talks, she believes she has no agency in her actions. When I'd thank her, she'd say "No, it's all God!". I went to her one of her church services one day, and it just made me feel so sad. The whole sermon was all "We are nothing, without God". The preacher completely talked down self-esteem movements, because... You are not supposed to have self-esteem, you are only supposed to trust in God.
Religious beliefs - unless very light - can be very toxic, even when they don't seem so. I don't envy that.