Job 23:2 Kabbalah

גַּם־הַ֭יּוֹם מְרִ֣י שִׂחִ֑י יָ֝דִ֗י כָּבְדָ֥ה עַל־אַנְחָתִֽי׃

Even to-day is my complaint bitter; My hand is become heavy because of my groaning.

Read kabbalistic (mystical) interpretation of Job 23:2: and classical mystical sources.