- From Hashem's essence אור is נמצא, just link everything is נמצא ממנו.

- Light is not a revelation of Hashem's essence, for His essence is not defined/limited by light.

- Analogy of a shiny stone for Hashem's essence being the source of light.

- Why the term בורא - creator can describe Hashem's essence.

- quote from אגרת הקודש סימן כ - why creation יש מאין must come from Hashem's true essence.

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