Editing Ohr Ein Sof (section)

==== By Desire ====
Even though He is an influence in the way of light and not in the way of flow, the difference between them is: that light's influence is in a way of "by itself," meaning without the influencer's involvement to influence the light. This is not the case with "flow," which is in a way of enclothement and involvement - where the influencer becomes involved in order to transfer the influence to the receiver. And one of the differences that emerges from this is: that flow is by the desire of the influencer, whereas light, being in a way of "by itself," means the influence does not depend on the desire of the influencer, like the light of the sun that doesn't depend at all on the sun's desire and cannot be stopped by its desire.

Nevertheless, the Infinite Light is a revelation that comes by the desire of the Essence. And the prevention of desire alone would constitute the prevention of the revelation of the Infinite Light. Although regarding His blessed Essence it is impossible to say any form or definition at all, that we would say there is an aspect of desire in Him, and therefore it is necessary that this is not actual desire, nevertheless the intention with desire is that certainly the light is not necessary.

And from this it emerges that the revelation of the Infinite Light, even this light that is before the Tzimtzum, is through Tzimtzum and concealment since it shines through desire and not in a way of "by itself" (necessarily). (However, this is not Tzimtzum as in the limited filling light, but rather in desire - the letters of "tzinor" [channel].)

Therefore, the truth of the light is not like the truth of the Essence, because the definition of truth is something that exists that will not be nullified, and since the existence of the light is renewed by desire, and when the desire is nullified the light is nullified, therefore it is not truth like the truth of the Essence. This is the interpretation of the Rambam's language: "He alone is the truth and no other has truth like His truth," which refers even to the Infinite Light before the Tzimtzum. However, the Infinite Light, being "light" which is of the same nature as the Luminary - the Essence, is true during its existence and is not like creations that are not completely true even during their existence.