Daniel 8:26 Kabbalah

וּמַרְאֵ֨ה הָעֶ֧רֶב וְהַבֹּ֛קֶר אֲשֶׁ֥ר נֶאֱמַ֖ר אֱמֶ֣ת ה֑וּא וְאַתָּה֙ סְתֹ֣ם הֶֽחָז֔וֹן כִּ֖י לְיָמִ֥ים רַבִּֽים׃

And the vision of the evenings and mornings which hath been told is true; but thou, shut thou up the vision; for it belongeth to many days to come.’

Read kabbalistic (mystical) interpretation of Daniel 8:26: and classical mystical sources.