Why do people fast on Yom Kippur?

Related questions

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2. Which Eid is celebrated for 3 days?
3. When can you fast after Eid?
4. How long is Ramadan celebrated?
5. What do you do on Eid Al Fitr?
6. How do you say Happy Eid?
7. Which day is the Eid Al Fitr?
8. How do you pray Eid ul Fitr prayer?
9. Why did the Ottoman Empire end?
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Tags

1. #comes
2. #enshrined
3. #hashanah
4. #reflecting
5. #repenting
6. #simply
7. #people
8. #start
9. #where
10. #kippur
11. #vehicle
12. #fasting
13. #their
14. #after
15. #jewish
16. #forgiveness