My question is, Hashem ontologically speaking, His Being, is a singular, yichud in all respects.
So does this conception stop at Ein Sof, or even before Ein Sof? And once the ohr proceeds forth from the Ein Sof down through the remaining sefirot, it is no longer considered Hashem's ontological Being, which is restricted to that which comes before Ein Sof?
My thinking is that since the Sefirot was created, it is not ontologically the same as Hashem.