You will also find that every newly arriving light is enclothed only in the vessel of Keter. This is because any recipient of light must receive the light in its purest vessel, which is the vessel of Keter.35The vessel of Keter is purest because the will to receive is most undeveloped in this vessel. As a result, the contradiction between the will to receive and the giving nature of the supernal light is minimal.
For the same reason, the lights that are already enclothed in the partzuf must descend one level from their place upon the arrival of every new light. For example, when the light of ruaḥ arrives, the light of nefesh must descend from the vessel of Keter to the vessel of Ḥokhma, in order to clear the space of the vessel of Keter so that it can receive the new light, which is ruaḥ. Similarly, if the new light is neshama, then ruaḥ must also descend from the vessel of Keter to the vessel of Ḥokhma to clear the space of Keter for the new light, which is neshama.
Consequently, nefesh, which is in the vessel of Ḥokhma, must descend to the vessel of Bina, and so on and so forth in this manner. This is all in order to clear out the vessel of Keter to make space for the new light.