קְחִ֥י רֵחַ֖יִם וְטַ֣חֲנִי קָ֑מַח גַּלִּ֨י צַמָּתֵ֧ךְ חֶשְׂפִּי־שֹׁ֛בֶל גַּלִּי־שׁ֖וֹק עִבְרִ֥י נְהָרֽוֹת׃
Take the millstones, and grind meal; Remove thy veil, Strip off the train, uncover the leg, Pass through the rivers.
Read kabbalistic (mystical) interpretation of Isaiah 47:2: and classical mystical sources.