וְ֠כָתַב אֶת־הָאָלֹ֥ת הָאֵ֛לֶּה הַכֹּהֵ֖ן בַּסֵּ֑פֶר וּמָחָ֖ה אֶל־מֵ֥י הַמָּרִֽים׃
And the priest shall write these curses in a scroll, and he shall blot them out into the water of bitterness.
Read kabbalistic (mystical) interpretation of Numbers 5:23: and classical mystical sources.