Yes, it's like reliving their memories in the now.
Things could end tragically as in your Grandfather's case.
There was an incident when my sister caught my mom trying to climb down the outside of their condominium to go do what she believed was needed to be done. It was a thirty foot drop to the ground and she would have had a fatal fall. 😲 Mom needed supervised care, there was no question about it.
Wow that’s so scary!😳
It would be so wonderful if they could find a cure for memory loss!😇