Jewish Mysticism
This is the secret of the conjunction of the tenth emanation in the ninth without any doubt, for he who causes the Community of Israel to be united with the emanation of Yesod is himself conjoined to her, and she is conjoined to Yesod, and the two of them as one are conjoined to YHWH.

Translated by Elliot Wolfson in “Asceticism and Eroticism in Medieval Jewish Philosophical and Mystical Exegesis of the Song of Songs.” In With Reverence for the Word- Medieval Scriptural Exegesis in Judaism, Christianity and Islam, 92-118. Edited by Jane Dammen McAuliffe, Barry D. Walfish, and Joseph W. Goering- Oxford and New York- Oxford University Press, 2003. Translated from Sha‘arei ’Orah, 2-51 Edited by Joseph Ben-Shlomo (Jerusalem- Mosad Bialik, 3rd edition, 1996).