Esther 8:1

"That same day King Xerxes gave Queen Esther the estate of Haman, the enemy of the Jews. And Mordecai came into the presence of the king, for Esther had told how he was related to her." NIV translation

God does more for us than we can ever imagine or hope for. This is an example of that as, not only did God take care of their accuser (Haman), but He also gave Queen Esther Haman's possessions.

She had went to the king just hoping that he would spare her life and the lives of her people but she probably never dreamed of being given Haman's estate. 

The favor that the king showed Esther is a picture of the grace that God wants to show us and is what Paul was talking about, in Ephesians 3:20, when he reminded the Ephesians that God can do more for us than we can imagine. When Jesus died on the cross and rose again, He not only saved us but He also has given us the power to reign over this estate called earth. Esther also explained to the king how Mordecai was related to her and so he was brought to the king.

Esther 8:2

"The king took off his signet ring, which he had reclaimed from Haman, and presented it to Mordecai. And Esther appointed him over Haman's estate." NIV translation

Mordecai was blessed by the king because of that relationship as the king gave him his ring which was the authority to act on behalf of the king. Mordecai was also put in charge of the estate of the man that had hated him so much. This is a picture of the authority and blessing that we have because of our relationship with Jesus Christ. As God's children, He gives us the authority to act on His behalf. He also gives us signs of this authority just like Mordecai received the ring. He also is going to reclaim the earth from the enemy which is the devil and put us in charge of it once again.