Answer: In our world, these contradictions are based on the person’s ignorance. He does not know where he is, with whom he deals, what he controls, and what he has to balance. He has absolutely no foundations.
In the spiritual world, he takes the Creator as the foundation, which is the basis of the balance of these two forces because He is the positive force. He generates the negative force so that we can exist in it as creations, opposite to Him.
Therefore, the balance between the two forces is maintained by the Creator at the inanimate, vegetative, and animate levels, and at the spiritual level between the properties of bestowal and reception, but with our intervention, as much as we require, we ask Him to help us keep this balance.
From the Kabbalah Lesson in Russian 12/16/18