Halakhah do Rodzaju 36:37

When corrupted choice darkens the light of the life of “broad spaces by the river,”³⁸Hebrew, reḥovot hanahar: a kabbalistic term based on Gen. 36:37, meaning the broadening of wisdom. Rabbi Schneur Zalman of Liadi, the founder of Chabad, characterizes reḥovot hanahar as the spreading of the kabbalistic sefi-ra of ḥokhma (wisdom), which he likens to a wellspring, into the sefira of bina (intellect), which he compares to a river (Likutei Torah, Shir hashirim 39b). which grows and overspills the borders of Israel, such choice mars the foundation of Israel’s natural excellence—though it cannot destroy it. But it can plunge that treasure deep, deep down into the depths, until it disappears for a long time, eons and eons. The people will long for light, when there is none, until the time of the End.