וְיָסְפ֧וּ עֲנָוִ֛ים בַּֽיהוָ֖ה שִׂמְחָ֑ה וְאֶבְיוֹנֵ֣י אָדָ֔ם בִּקְד֥וֹשׁ יִשְׂרָאֵ֖ל יָגִֽילוּ׃
The humble also shall increase their joy in the LORD, and the neediest among men shall exult in the Holy One of Israel.
Read kabbalistic (mystical) interpretation of Isaiah 29:19: and classical mystical sources.