29. When Bina, Tiferet, and Malkhut rise above the diaphragm and reconnect with the level, they do not become a single, seamless level with the two vessels of Keter and Ḥokhma. There remains a gap between the two vessels of Keter and Ḥokhma, which were never impaired since they did not leave their level, and the three vessels of Bina, Tiferet, and Malkhut, which left their level and were impaired at the time of immaturity and have now returned. This gap renders them into two lines, right and left. Keter and Ḥokhma of the level become the right line, while Bina, Tiferet, and Malkhut become the left line (as explained in the Sulam 's commentary on Vayak’hel, section 130, s.v. “vezeh”).