Explains the issue of Tzimtzum Aleph, when Ohr Ein Sof became restricted in order to emanate the Ne’etzalim and create the creatures; containing five issues:
1. Before the Tzimtzum Ein Sof filled the entire reality.
2. The reason for creation was the revelation of His Names and Appellations.
3. The Tzimtzum of the Ohr around the middle point.
4. The Halal that remained after the Tzimtzum was Agol.
5. Because Ohr Ein Sof was even, the Tzimtzum was also even. This is the meaning of the Igul.
Before the Tzimtzum Ein Sof filled the entire reality...