The shattering of the vessels isn’t just a shattering, but is the revelation of the places in which previously there were flaws that were concealed. Now, however, when the flaw has been revealed, it is possible to clarify it, to examine it to its full depth, and to correct it by completing what is missing in it.
So a much stronger and more sublime state is created after we put all the parts together again. It only looked whole before, but inside there were many cracks. It’s the illumination that is added in the final third phase of creation that was lacking in the vessel of the world of Ein Sof (Infinity) in phase one.
From the 1st part of the Daily Kabbalah Lesson 3/15/13, Shamati #38