The Zohar, Chapter “Miketz (At the End),” Item 85: Wherever the judgment is placed on Israel, and it says, “burden,” it is seemingly a burden on the Creator to punish Israel. This is a burden from both sides, as though He is burdened whether He punishes them or does not punish them. If He does not punish them, they will remain in the filth of the sin. And if He does punish them, He is seemingly suffering for the affliction of Israel. This is why it is bad when it writes, “burden,” concerning them.
It is impossible to make spiritual progress without revealing the will to enjoy. Our desire to be filled with pleasure is infinite, but it is concealed within us. When this desire gradually reveals itself in its uncorrected form, we begin to experience problems. Our heart becomes burdened and our advancement becomes even more difficult. Yet the process we undergo is inevitable because our correction occurs over our desire to enjoy. Therefore, it must be revealed this way.
Revelation of our uncorrected desires is a sign that we are ready to be corrected. This is why new layers of the uncorrected desire to enjoy are revealed, allowing us to work on them. For this reason, we must appreciate both the good and the bad.
There is no such thing as “bad,” but only what is called the “Revelation of Evil.” When that which was previously concealed becomes disclosed to us in the form of “wicked” (egoistic) desires, the process of correction is made possible.