וְאֻסַּ֣ף שְׁלַלְכֶ֔ם אֹ֖סֶף הֶֽחָסִ֑יל כְּמַשַּׁ֥ק גֵּבִ֖ים שׁוֹקֵ֥ק בּֽוֹ׃
And your spoil is gathered as the caterpillar gathereth; as locusts leap do they leap upon it.
Read kabbalistic (mystical) interpretation of Isaiah 33:4: and classical mystical sources.