Although the tzimtzum is the concealment of Hashem's essential Unity that fills all of creation, we perceive the hiddenness differently in different places.

The Nefesh Hachaim explains that the tzimtzum represents the concealment of Hashem's essence, the aspect of which is His absolute imminence. The kav is the perception we have of higher and lower aspects of reality.

The two aspects we have been discussing correspond to the concept of the constriction (tzimtzum) and the ray of light (kav) that are discussed at length in the works of the Ari z'l.

All of the service of Hashem that we do is predicated on the fact that we have separate existence and that there are differences between places. The higher reality of Hashem's absolute Unity is one that we must be aware of, but we are not permitted to meditate upon too deeply.

All of the service of Hashem that we do is predicated on the fact that we have separate existence and that there are differences between places. The higher reality of Hashem's absolute Unity is one that we must be aware of, but we are not permitted to meditate upon too deeply.

We see how the name Hakadosh Baruch Hu reflects the two aspects of the paradox of Hashem's interaction with reality.

From Hashem's perspective there is nothing but Him. At the same time, from our perspective there is separate existence.

Just as the soul fills every part of the body, both the pure and impure parts, and is unaffected by them, so too, Hashem fills every aspect of His creation, and yet He is not affected or changed by it.

We continue to explore the paradox of the fact that although Hashem fills all the worlds equally, nevertheless there are different aspects within His interaction with them.

We explore the paradox of the fact that although Hashem fills all the worlds equally, nevertheless there are different aspects within His interaction with them.