בֵּאדַ֜יִן דָּרְיָ֣וֶשׁ מַלְכָּ֗א כְּ֠תַב לְֽכָל־עַֽמְמַיָּ֞א אֻמַיָּ֧א וְלִשָּׁנַיָּ֛א דִּֽי־דארין [דָיְרִ֥ין] בְּכָל־אַרְעָ֖א שְׁלָמְכ֥וֹן יִשְׂגֵּֽא׃
Then king Darius wrote unto all the peoples, nations, and languages, that dwell in all the earth: ‘Peace be multiplied unto you.
Read Kabbalistic (mystical) interpretations of Daniel 6:26: Zohar and classical Jewish mystical sources, free online.