Why does illusion occur?

Related questions

1. What does illusion mean in art?
2. What does it mean to have no illusions?
3. What is the difference between illusion and hallucination?
4. What is illusion and its types?
5. What does illusions of grandeur mean?
6. What is an example of a delusion?
7. What is the verb of illusion?
8. What is the difference between illusion and allusion?
9. What is the difference between hallucinations and delusions?
10. What is the difference between sensation and perception?

Tags

1. #illusion
2. #suggests
3. #receive
4. #areas
5. #occur
6. #process
7. #pointed
8. #information
9. #properties
10. #brain
11. #illusions
12. #visual
13. #optical
14. #because
15. #arises