It did for me. Mainly on the subject of death. Like, when my grandmother died, and my old dog had to be put down, and even going to funerals to be moral support for friends or family, it’s hard for me to live with “I/they literally will never see them again” I don’t think I’ve ever fully coped with it, but I’d be more upset with myself believing in an afterlife as an easy way out.
Yes, it did. I had to come to terms with things I believed and looked forward to. Seeing loved ones again, an afterlife, heaven and "God."