The name of the Creator is the direct light that enters Keter, Hochma, Bina, Zeir Anpin, and Malchut. When the light reaches Malchut it is reflected backward.
These lights are clothed in each other and create a complex light, which means that a spiritual disturbance takes place in them. Each light is clothed unto the light that is opposite from it, and the combinations between them create the name of the Creator.
It is a very complex system, the connection of the reflected light with the lights that enter.
From KabTV’s “Fundamentals of Kabbalah” 2/24/19