Whatever bad had seemed to be happening by chance was, in fact, intricately planned for the good. Nothing happens by accident. There's a design to it all. This, in fact, sums up Jewish history. Just as in the story of Purim when it's over we look back and we see how everything fits into place.
Nothing is by chance.
Everything has a reason and God will make sure that even in the worst circumstances the Jews are always going to have a way out, so that they can accomplish their mission in this world. The next part of their mission means rebuilding the Temple. Darius II succeeds Achashverosh as King of Persia. He is believed to be Esther's son and he allows the Jews to finish the job they had started under Cyrus. This is a very special time in Jewish history when the Jews make a second attempt at getting it right.