I have been reading a little about Ein Sof and the [Tzimtzum](https://en.wikipedia.org/wiki/Tzimtzum) and other related topics such as [Ohr](https://en.wikipedia.org/wiki/Ohr). In these pages we find statements such as these:

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> * From the perspective of God's self-knowledge, the emanations remain completely united and **nullified** to their source.
> * In the Chabad view, the function of the tzimtzum was "to conceal from created beings the activating force within them, enabling them to exist as tangible entities, instead of being utterly nullified within their source".
> * In the absolute Unity of the Ein Sof, "no thing" (no limitation/end) could exist, as all would be nullified.
> * Ohr also refers to the revelation and expression of any particular spiritual level which descends from that level and enclothes itself in a vessel (Kli). This Ohr is typically in a state of "Bittul" ("nullification") vis-a-vis the level from which it stems.
> * The immense revelation of the Divine would nullify them in their source, as the light of the sun inside the sun itself.
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They say "The term in Kabbalah and Hasidic philosophy for this nullification is **[Bittul](https://www.chabad.org/library/tanya/tanya_cdo/aid/5400232/jewish/What-Is-Bittul.htm)**".

What exactly does this nullification mean in these sorts of contexts? "Nullified to their source", that's a hard to parse phrase. Why would all things be nullified in the Ein Sof? Is it because (using the metaphor of light), the white is everywhere when inside the light and there is no distinguishing its parts, or how do I conceptualize of this?