Yom Kippur

Dear Rabbi, what is the purpose of fasting on Yom Kippur? Thank you.

Dear Rabbi, I was told that on one historic Yom Kippur, the entire Jewish people ate and drank. and were praised for it by Hashem. When did this occur?

who was Azazel in the, what rituals were put on the goat sent to azazel what rituals were put on the other goat for a sin offering  

did the sacrifice on the day of atonement pay for the sins of the next year or how did it work In Leviticus 16 :7-10 there were two goats 1 for the Lord and the other was the scape goat what were the two different type of scrafices made by these goats as far as sin in concerned was 1 for present and other for future or 1 for past and other for future please explain why there were 2 goats in this part of the atonment

What is the purpose of fasting on Yom Kippur?

Dear Rabbi, what do we mean when we say that Yom Kippur is the Day of Atonement? Thanks for this wonderful service you provide.

I am planning to fast on this Yom Kippur for the first time and would like to have a better understanding of the essence of the day. Rabbi, how would you explain the idea of Yom Kippur so that I can hopefully have a more meaningful experience? Thanks.