שְׁלַח־אוֹרְךָ֣ וַ֭אֲמִתְּךָ הֵ֣מָּה יַנְח֑וּנִי יְבִיא֥וּנִי אֶל־הַֽר־קָ֝דְשְׁךָ֗ וְאֶל־מִשְׁכְּנוֹתֶֽיךָ׃
Envoie ta lumière et ta vérité: qu’elles soient mes guides, qu’elles me conduisent à ta montagne sainte, dans ta demeure!
Ba'al Shem Tov
It can happen that one is praying on a lowly level, and suddenly in a flash their soul is illuminated and rises to upper worlds, like a person ascending a ladder, as it is written (Psalms 43:3) "Send forth Your light and Your truth, they shall guide me," - referring to the supernal illumination.