Chazal's Preambles to Megillat Esther #5 - Special Mussar Series

Chazal's Preambles to Megillat Esther #5 - Special Mussar Series - Parts 7 and 8 of an eight part series:

What meaning does Purim have to the people who actually returned to Israel a FEW YEARS LATER?

Part 8: Learning how to daven from Ninveh