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Introduction to the higher idea in Shetach:
The question of what is G-d is answered in [Chakira as the essence of ideas, but in] Kabbalah as Ein Sof.
This means that there’s infinite possibilities in Him.
In the world a (relatively) tiny fraction of those possibilities are manifest.
In the language of Chassidus it is עשר ספירות from a possible ספירות אין קץ.
On the level where they are one with עצמות two things are different from how the ספירות are in the world:
1) They are all unified in the אין סוף.
2) The 10 are not related to each other at all; rather each one exists as an עצמי.
בינה on the level of עצמי is הרחבה; thus there are two levels of מרחב one connected to the world and the other way beyond that.
We are beginning to explore the higher level.
