This means that flaws can exist... This is bound up with the concealment of perfection that I have mentioned. Since Eyn Sof, blessed be He, is the ultimate perfection, it is quite impossible to ascribe any deficiency whatever to Him, for if there were any possible deficiency in Him, His perfection is sufficient to negate it. The negation of any possible deficiency is intrinsic to Him because of His axiomatic perfection.
However, His ability to negate any possible deficiency remained potential as long as there was never an actual deficiency that His perfection would have to negate. Until an actual deficiency came into existence, we would have had no clear knowledge at all of how that perfection operates to negate all deficiencies, for the light is only discernible out of darkness. As long as we do not know what deficiencies the darkness causes, it is impossible to know the good and perfection caused by the light. In order to demonstrate this clearly in actuality, it was necessary to produce a work in which perfection is invisible. Then all the deficiencies found within this concealment would become visible, so that with hindsight we can know the deficiencies which the primordial perfection negated.