The Zohar, Chapter “Bo (Come Unto Pharaoh),” Item 218: But after He had made that form of the chariot of the upper Adam, He descended and clothed there, and he is named in it in the shape of the four letters HaVaYaH.
The Creator made the worlds. Inside the white Light He created a rough framework of reality: the order of steps, Partzufim, and Sefirot. This was done so that we would have something to “grasp onto,” and “climb” up, gradually reaching the simple white Light.
We climb up these steps from our world reaching the World of Assiya, then the worlds of Yetzira, Beria, Atzilut, Adam Kadmon, and the World of Infinity; they all roll up behind us like a rug. We rise together with the worlds, and they all disappear. Therefore, the Hebrew word “world” (Olam) originates from the words “Elem,” “Alama” (concealment), and “Nehelam” (disappearing) since eventually they disappear and cease to exist.
These worlds were formed due to the fact that the Creator created a black netting inside the white Light, making it easier for us to navigate and find the steps from our current state. However, as soon as we complete our correction and rise to the World of Infinity, then this entire framework will disappear and become absorbed by the Light.