בְּהַרְאֹת֗וֹ אֶת־עֹ֙שֶׁר֙ כְּב֣וֹד מַלְכוּת֔וֹ וְאֶ֨ת־יְקָ֔ר תִּפְאֶ֖רֶת גְּדוּלָּת֑וֹ יָמִ֣ים רַבִּ֔ים שְׁמוֹנִ֥ים וּמְאַ֖ת יֽוֹם׃
when he showed the riches of his glorious kingdom and the honour of his excellent majesty, many days, even a hundred and fourscore days.
Read kabbalistic (mystical) interpretation of Esther 1:4: and classical mystical sources.