So, the nes occurred on the day of Shevisas Ha'Man (see the previous post). And Haman was hung that evening, the eve of the second day of Sefirah. Shteit in Seforim (see Ohr Gedalyahu on Lag Ba'Omer) that the 49 days of Sefirah correspond to the 48 ways in the sixth chapter of Avos, with one day to bring everything together. The second day's middah is shemi'as ozen. The ear is called ozen because it provides balance. Which, as Rashi says in Parashas Beshalach, is the purpose of the Torah - איזון מצוות.
The first day of Pesach is the day, azoi vi shteit in Seforim, of פה-סח, of speaking out. That leads into the first day of Sefirah, which has the middah of Talmud - the learning. But to absorb the learning, one has to hear (from whence, doubtless, the yeshivish: "I hear") - but not just לשמוע, but להאזין (nisht nohr tzu herren, nohr da-herren). [Since Haman did not have that middah, we eat Oznei Haman - ויש להאריך!]
Mordechai is ben Shim'i - he heard, and therefore his tefillos were heard (Megillah 12b), but he was also ma'azin. Shemi'ah is chochmoh - acquiring the knowledge (ישמעו אזניך מה שפיך מדבר) - and Ha'azanah is binah - understanding what it has to say. Binah is חכמת נשים - and חכמת נשים בנתה ביתה. What House? the House of Malchus - לבוא מבית הנשים אל בית המלך. That coming has to be out of שחוק וזמר (see Rashi to that pasuk), which grinds (shochek) and prunes (zomer) the bad, to make it good when possible, and eliminate it when necessary. This is the highest bechinah of Hashem's relationship to the Beri'ah - which only will be accomplished fully b'Acharis HaYamim - שוכן שחקים - when then ותשחק ליום אחרון. For ultimately, when you really listen, you will know and proclaim כל מה דעביד רחמנא לטב עביד and, as the Chazon Ish said that there is no sadness for one who perceives אור האורות of the ultimate truth.
ותלבש אסתר מלכות - that is the עז והדר לבושה. Oz is inner strength, hadar is outer splendor. The simchah of the da-herr brings inner strength and outer splendor (malchus and kehunah ויש להאריך!).
So, of course, Mordechai is mentioned 58 times in the Megillah - k'minyan אזן.
In the end, however, the chiddush of Purim is even ad d'lo ya'da - take away the da from the da-herr. A drunk really has difficulty hearing others. But the "inner ear" is always attuned to דעת עליון.
תן לחכם ויחכם עוד!