Mordechai “the Jew”
Mordechai was a Benjaminite, but he is called “Yehudi,” literally meaning a descendant of the tribe of Yehudah. Likewise, the Megillah refers to the Jewish people as “Yehudim,” ignoring tribal differences.
Why Yehudi? Yehudi is of the same root as “hoda’ah,” meaning to acknowledge, or to accept. The essence of Jewish identity can be traced back to the unified response of the Jewish people at Sinai, where they expressed acceptance of G-d and His will.
Esther vs. the Maccabbees
Unlike the events of Chanukah—miraculous, extraordinary and clearly from “Above”—by which the Jewish people were delivered, on Purim a series of coincidences, none too dramatic at first, conspire to deliver the Jewish people. Camouflaged in the ordinary, the Purim saga is resolved from “below” as it were.
Chanukah celebrates the transcendent aspects in the relationship between Jew and G-d; Purim illuminates a relationship with G-d that pervades the most mundane, everyday details of our lives.
Hence the Chanukah dreidel or the “top” is spun from above; the Purim gragger is held, and cranked, from below.
Casting lots is a way of allowing “chance” rather than reason, to decide. By casting lots, Haman hoped to invest his scheme with the force of fate.
Indeed, it would take extraordinary efforts—of great repentance and personal sacrifice by the Jewish people—to reverse Haman’s lots. For the duration of almost an entire year (Haman’s decree was issued in the first month, Nissan, and reversed in the twelfth month, Adar) the Jews persisted and persevered in the face of looming annihilation, remaining steadfast in their adherence to Torah.