This isn't exactly what you are looking for, but I will share it anyway.
A few years ago I rented a room from an old man. He was a grumpy old codger and a devote atheist. Time after time I heard him say, "When you're dead, you're dead!"
Well, one day he's out in the front yard and he falls and breaks his leg. After being taken to the hospital and getting a cast on his leg, he has to spend a few days in rehab. Problem is, rehab is full, so they arrange for him to stay in hospice.
One of the people he befriends is an older black woman. They have breakfast each morning and he seems to enjoy her company. One morning, she's not there. Next morning, she's not there. He asks one of the nurses where she is and is told that the woman passed away the other night.
Now, remember, he is an atheist and he believes that when you're dead, you're dead!
But he tells me that each night, for the duration of his stay, a ghostly figure would appear in his room at night and he believed it was the woman! (Now I gotta tell you, taking a cue from an old Eddie Murphy monologue, if I wake up in the middle of the night and I see a ghost in my room, friend or not, I'm getting the HELL outta there!!!)
Now, of course, I can't believe that he is believing this! And I know this man. He's not yanking my chain or anything.
Well, I just listened to his story, I didn't offer up any advice or give my opinion or anything. I just found it odd that he would believe this.
A few months later I brought the subject up again. I don't remember exactly what I wanted to know from him. But he just looked at me, perplexed, and said, "I don't know what you're talking about." I reminded him again about the dead woman, and he just looked at me like I'm crazy and shakes his head.
Alzheimers maybe??