Beginning the Maamar תתנ אמת ליעקב
The Maamer begins with an obvious question: inasmuch as Yaakov is rooted in
the attribute of Truth (Tiferes), why is it necessary to give truth to Yaakov? The discussion then turns to the issue of why the world of Bri’ah is associated with darkness, whereas the far lower world of Yetzirah is described as light