Accordingly we need to know that not only does God alone exist, but also that God alone is in control. This is what is meant by the oneness of his Will: that nothing in the world could ever negate His will, for He alone is in control.
Everything we see that appears to be contrary to His will exists only because He allows it in accordance with His deep plan, which will continue unfolding until He brings everything to complete perfection. At present God leaves man with freedom of choice for as long as He wills. But in the end – whether through repentance or by means of punishment – everything will return to complete perfection. This is called “the oneness of Eyn Sof, blessed be He”. We are talking about the oneness of His Will (but not about Eyn Sof in His intrinsic Essence).