The lower walls of the chamber have a lighter and more elegant appearance, while the various elements of the wall and dome are also better-aligned vertically, leading one's gaze upward. Muqarnas squinches are again used for the transition of the dome to the square chamber.
The architectural design of the chamber features lighter and more refined walls, with its elements and the dome being better aligned vertically, drawing the viewer's attention upwards. The use of muqarnas arches is repeated in the transition from the dome to the square chamber.