וְאָמַ֥ר סֹֽלּוּ־סֹ֖לּוּ פַּנּוּ־דָ֑רֶךְ הָרִ֥ימוּ מִכְשׁ֖וֹל מִדֶּ֥רֶךְ עַמִּֽי׃ (ס)
And He will say: Cast ye up, cast ye up, clear the way, Take up the stumblingblock out of the way of My people.
Read kabbalistic (mystical) interpretation of Isaiah 57:14: and classical mystical sources.