"So Mordecai went his way and did according to all that Esther had commanded him"...[nkjv]
Esther still had great respect for Mordecai, but in this instance she used her royal position to decree a fast. This , together with prayer, was a vital preparation in order for Esther to be successful in her mission. The Destiny of her Nation hung in the balalnce and Esther wanted a victorious outcome ! When you face a monumentous challenge in your walk with God...get all the prayer support you can muster ! and dont forget to 'put your hand to the plough' as well ! We know that there was a great outcome for Esther and her people. There are always Spiritual Principles behind every Victory in the Christian life. This passage of Scripture depicts one of them. Let us take it and apply it, then await the results. When the Breakthrough comes, be sure to give all the Glory to GOD.
May The Lord Bless you.