זָ֘כַ֤רְתִּי יָמִ֨ים ׀ מִקֶּ֗דֶם הָגִ֥יתִי בְכָל־פָּעֳלֶ֑ךָ בְּֽמַעֲשֵׂ֖ה יָדֶ֣יךָ אֲשׂוֹחֵֽחַ׃
I remember the days of old; I meditate on all Thy doing; I muse on the work of Thy hands.
Read kabbalistic (mystical) interpretation of Psalms 143:5: and classical mystical sources.