כִּ֤י ׀ יוֹמָ֣ם וָלַיְלָה֮ תִּכְבַּ֥ד עָלַ֗י יָ֫דֶ֥ךָ נֶהְפַּ֥ךְ לְשַׁדִּ֑י בְּחַרְבֹ֖נֵי קַ֣יִץ סֶֽלָה׃
For day and night Thy hand was heavy upon me; My sap was turned as in the droughts of summer. Selah
Read kabbalistic (mystical) interpretation of Psalms 32:4: and classical mystical sources.