Reply To: Yom Kippur like Purim

They compare YK and Purim as they both had lots picked. Yom Kippur was selected to Hashem or Lazozel. Purim the Yaaros Devash says that there were two lotteries two validate each other. One, for the months and another for the days. To be a valid lottery, the day number picked had to be able to fall into the month number picked.