One night a few years ago, my grandma fell in the bathroom and broke her back. I found out a few weeks later that the same night, at the same time, my dad suddenly jolted out of his sleep and saw little flashing lights everywhere in his bedroom. He said that his entire room was literally filled with THOUSANDS of lights. One might think that he was dreaming, but he has had several experiences with ghosts. He later attributed this to someone/something trying to warn him. He told me never to tell my mom, because she would probably never sleep in their bedroom ever again.