Hallucinations: Are you seeing things that aren’t there?

My maid was behaving weirdly the other day. She claimed that she saw a woman in her room, telling her that her daughter in Indonesia had died. When I went to check, there was no one in the room. I was very afraid because I thought it might be a ghost. But then, someone told me that my maid might be having a hallucination. What is a hallucination?

A hallucination is a false perception that has no identifiable external stimulus. This means that it all happened in someone’s mind and is not caused by something that really was there, such as an actual person speaking to you or an actual voice from the television. A hallucination indicates that there is something abnormal with the person’s perception.