vi⋅sion

- noun
1. the act or power of sensing with the eyes; sight.
2. the act or power of anticipating that which will or may come to be.
3. an experience in which a personage, thing, or event appears vividly or credibly to the mind, although not actually present, often under the influence of a divine or other agency.
4. something seen or otherwise perceived during such an experience.
5. a vivid, imaginative conception or anticipation.
6. something seen; an object of sight.
7. a scene, person, etc., of extraordinary beauty.

hal⋅lu⋅ci⋅na⋅tion

- noun
1. a sensory experience of something that does not exist outside the mind, caused by various physical and mental disorders, or by reaction to certain toxic substances, and usually manifested as visual or auditory images.
2. the sensation caused by a hallucinatory condition or the object or scene visualized.
3. a false notion, belief, or impression; illusion; delusion.

de⋅lu⋅sion

- noun
1. an act or instance of deluding.
2. the state of being deluded.
3. a false belief or opinion.
4. a fixed false belief that is resistant to reason or confrontation with actual fact.

de⋅lude

- verb
1. to mislead the mind or judgment of; deceive.
2. to mock or frustrate the hopes or aims of.
3. to elude; evade.