Q: When Malchut cleaves to the Creator in its final state, does that state last until it is completely nullified within the Creator, or does creation remain separated nonetheless?
A: It is impossible to explain in words the complete adhesion, which is complete in the unity of thoughts and qualities. But the intent of one toward the other is not gone, and herein lies the difference. Creation is not nullified within the Creator, but remains active for Him. It would have been nullified if it had not acquired a screen on the desire.
We see that the Will and the goal of the Creator is for creation to remain independent in its thoughts, and equal to the Creator in strength, will power and intent.