Aristotle said “Everything complete has a beginning middle and an end.”
You see Kabbalah teaches (amazingly the last major address the Rebbe edited and distributed reveals this) “Everything God does also has a three part sequence: a vision, a plan which following its execution, creates the result.”
You see God had a vision, a vision of, as I read from Rabbi Yossy Jacobson, the secret behind the words Shema Yisroel, “God is one” versus ONly, is that ultimately, beyond perfection lies unity!
Unity is a very imperfect art.
You may have a perfect canvas of red or blue; but mix them in imperfect lines, swirls, bursts and you have art.
You see to create unity, God subdivided his soul into each and everyone one of us!
But the plan is that we should learn how to rise beyond pettiness, rise beyond delusions of ego; and allow our own inner joy, our own inner love, the experiential knowledge That We Are All God.