I have a couple stories.

One not really a ghost story. My grandmother (the one I was most like, resembled in appearance in her younger photos, shared my love of reading) was very ill with Parkinson's disease. She had her mind, but was basically trapped in her body. One night while I was pregnant (roughly 2 weeks away from my due date), I had a dream about my grandmother. We were both getting our hair styled at a salon, talking & happy. It was a very vivid dream. I woke up and saw it was around 4:15 AM (I woke a lot being that pregnant, hard to get comfortable and needing the bathroom constantly). The next morning, my mother called and told me my grandmother had passed away around 4:15 AM that morning.

A few weeks later, I was nursing my daughter in bed. We were co-sleeping, a practice a lot of people frown upon, but really, it's how people did it before modern times if they were poor and didn't have a wet nurse. It was also the only way I could get enough sleep to function without constantly yelling at my baby. One morning, I woke, around dawn, nursing my daughter in bed. A weird sense of peace came over me, and I had the strongest feeling I was being watched, but I wasn't scared. I felt a light presence (never saw anything because I am extremely nearsighted and didn't reach to put my glasses on). I got the feeling my recently deceased grandmother was standing at the foot of the bed, watching me nurse my new baby, but I was not scared or creeped out. A few minutes later, the feeling went away, like she had gone. When I told the story to my mother, she said if it had been in her power, she didn't doubt my grandmother would have come to see my new baby if at all possible. I never believed in ghosts before that. It was a strange experience.