Psalms 143:4 Midrash

וַתִּתְעַטֵּ֣ף עָלַ֣י רוּחִ֑י בְּ֝תוֹכִ֗י יִשְׁתּוֹמֵ֥ם לִבִּֽי׃

And my spirit fainteth within me; My heart within me is appalled.

Read midrashic interpretation of Psalms 143:4: and classical rabbinic exegesis.