So it is in the upper realms: first the light entered, but it had to leave again. Afterwards, parts of the vessels were repaired and the lights began to enter into them. As more and more parts of the vessel are repaired, so the light enters more and more. And when the process of purification is complete in all parts of the vessel, all the light will enter completely. However, the process of refinement of the vessels after their purification follows the order of the destined future ascents of the lights of the Ears, Nose and Mouth.
Light That Enters, Retreats, and Finds Its Place
Kalach Pitchei Chokhmah 42:8