28. The second rectification is to strengthen the diaphragm (mentioned in section 16 above), which is the arresting force of the Malkhut that ascended to Bina, in such a manner that it will never be negated. Even when the Malkhut descends from Bina, its arresting force remains in the place of Bina. The Bina, Tiferet, and Malkhut that are returning to connect with the level must rise above the diaphragm, where they reconnect with the level. However, when they are situated below, under the diaphragm, they cannot connect with the level, even though the Malkhut has already descended from there, since its arresting force remains even after its descent from there.