Hallucinations are sensory experiences that appear real but are created by your mind. They can affect all five of your senses. For example, you might hear a voice that no one else in the room can hear or see an image that isn't real.

What is hallucination caused by?

There are many causes of hallucinations, including: Being drunk or high, or coming down from such drugs like marijuana, LSD, cocaine (including crack), PCP, amphetamines, heroin, ketamine, and alcohol. Delirium or dementia (visual hallucinations are most common)

What hallucination means?

The word "hallucination" comes from Latin and means "to wander mentally." Hallucinations are defined as the "perception of a nonexistent object or event" and "sensory experiences that are not caused by stimulation of the relevant sensory organs."