When you hallucinate, you are hearing, seeing, smelling or feeling things which are not really there. For example, you may see visions, hear voices in your head, or feel yourself flying through the sky.
Although these experiences are not real, they seem as vivid and as real as any other experience.
Hallucinations are usually diagnosed alongside psychotic disorders, such as dementia, bi-polar disorder (manic depression), schizophrenia, substance abuse, as well as with some personality disorders. However, many famous people throughout history, including most of the great spiritual leaders, have heard voices or seen visions. And many people who have recently lost a loved one or who have gone through a traumatic experience may also hear voices or see visions, if only for a short while.
Find out more about coping with voices.