There are some clear parallels between the life of Mordecai and his ancestor Joseph. Like Joseph, Mordecai begins as a mere servant in a foreign land. Joseph received special revelation through dreams; Mordecai overheard a secret. Both men engage in an act of rescue, which leads to the preservation of their people, and to their being appointed as second in command to the foreign king (10:3). Both men saw the danger before them, and dared to be part of the solution, no matter what it might cost.
LORD, make us rescuers.
Esther 9-10