I believe in Ghosts and signs, and a woman I worked with who was sane and very Religious, as was her Daughter, she said a few times her Mother came to visit her Daughter.
We had a picnic over the weekend and my Cousin who's also sane, said that there was a Ghost in her house, she and her MIL would be in the kitchen and no 1 else was home and they'd hear someone walking upstairs, when her Daughter was 2 or 3 she told her Mother that there was a man who would come into her room at night then disappear, my Cousin got a little freaked out, so she said 1 day she went into her Daughters room and sat down and was very nice and asked the Ghost to please stop visiting her Daughter because her Daughter was frightened, her Daughter never saw the man again. It turns out that the person who owned the house before them was an old man who was doing construction on the house, and he died at the house, and the room he visited was the room my Cousins Daughter slept in and it was the only room he didn't finish.