Answer: Man. The Creator is called Boreh, “Bo u-reh – come and see.” Everything a person attains in his corrected vessels (Kelim) is called the Creator. Therefore, the attainment of the Creator depends on a person’s actions. So the person creates the Creator.
I create either a small or large vessel on different levels into which the upper Light enters. The vessel with the Light that fills it—HaVaYaH that is filled with the Light of NRNHY (Nefesh, Ruach, Neshama, Haya, Yehida)—is called the Creator.
Who created the vessel? I did through my efforts. Therefore, the Creator is called come and see.
So, who is the Creator? The one I created. The force that exists above us and enables us to attain ourselves is called Atzmuto, that is, He is Himself in Himself.
Question: And this is the upper mind?
Answer: We cannot even speak about the mind. It is simply He.
From the Kabbalah Lesson in Russian 3/12/17