Many people believe they have seen ghosts. Others believe they have felt ghosts near them. Often the ghost is said to appear as a feeling of cold and a light or a misty cloud, but sometimes people say they have seen ghosts that look more like people. Sometimes ghosts are said to come in human form. Some ghosts might cause fear in the person who sees them, by being seen suddenly. Some ghosts are said to be friendly and help people who have problems. People or animals that can sense ghosts cannot feel them touching them as they are the spirit of a person, or a personified force.