I definitely believe it, too! My Mom worked as a nurse and told us stories about dying patients that talked about their long-passed spouse coming for them. One older lady that was dying swore that her dead husband came, talked to her and promised he would be back for her in the evening. The woman was very excited since it had been years since she saw him. Needless to say, she passed that evening and Mom always felt comforted that the two were together again.
My wife’s sister, when she was about 5, woke up one morning and came to the kitchen, where the family was gathered, and asked “where is grandpa?” They told her that he lives in California and he was not there (they were in Chicago). She was sure that he went into her bedroom that night and had said goodbye to her. She was very insistant to the point that they called grandpa to show her he was there.
Turned out Grandma was going to call them to let them know that Grandpa had died that night.
There’s a book titled “Famous Last Words” I think you’ll find interesting. Also, do an on-line search on those words. I firmly believe there’s something after. I told one elderly lady that the reason people die in their sleep is because what they’re experiencing there is better than what they experience in real life and they decide to stay.