Ecclesiastes 9:14 Kabbalah

עִ֣יר קְטַנָּ֔ה וַאֲנָשִׁ֥ים בָּ֖הּ מְעָ֑ט וּבָֽא־אֵלֶ֜יהָ מֶ֤לֶךְ גָּדוֹל֙ וְסָבַ֣ב אֹתָ֔הּ וּבָנָ֥ה עָלֶ֖יהָ מְצוֹדִ֥ים גְּדֹלִֽים׃

there was a little city, and few men within it; and there came a great king against it, and besieged it, and built great bulwarks against it;

Read kabbalistic (mystical) interpretation of Ecclesiastes 9:14: and classical mystical sources.