וּלְאָשֵׁ֣ר אָמַ֔ר בָּר֥וּךְ מִבָּנִ֖ים אָשֵׁ֑ר יְהִ֤י רְצוּי֙ אֶחָ֔יו וְטֹבֵ֥ל בַּשֶּׁ֖מֶן רַגְלֽוֹ׃
And of Asher he said: Blessed be Asher above sons; Let him be the favoured of his brethren, And let him dip his foot in oil.
Read kabbalistic (mystical) interpretation of Deuteronomy 33:24: and classical mystical sources.