Hallucinations are defined as the perception of a nonexistent object or event and the word originates from latin, meaning "to wander mentally" (Purse, 2020). Hallucinations could be involving hearing, seeing, feeling, smelling, or even tasting things that are not real. Disorders such as bipolar disorder and schizophrenia can cause hallucinations. Drug and alcohol use can also be a reason why an individual may experience hallucinations. There are even some less obvious causes to hallucinations such as migraines, middle/inner ear diseases, stroke, epilepsy, PTSD, and sleep deprivation. It is important for individuals experiencing this to seek for medical attention and remain calm (Purse, 2020). I believe this perception disorder is very interesting.