The Zohar, Chapter “Ki Tissa (When You Take),” Item 16: “All those who are angered at you will be shamed and dishonored.” The Creator is destined to do unto Israel all that good, which He had said through the prophets of truth, and for which Israel greatly suffered in the exile. Had it not been for all that good that they await and see, which is written in the Torah, they would have been unable to tolerate and stand the exile.
This means that a person gains a greater desire for correction, called “Isra-el” (directly to the Creator), by anticipating the goodness and abundance that will come later on. And moreover, his desire grows even stronger when he gains an initial connection with that goodness.
In our world, a person feels like he knows that he will receive a future reward for his suffering. But in spirituality, this is not the case. There, a person doesn’t receive psychological relief by thinking that evil will turn into goodness. One who is studying Kabbalah relates to this differently. When a person is on the path of truth, he knows that evil is there to help him attain goodness. He sees that the evil is actually within him and he has to correct it instead of simply enduring it. Then, instead of feeling the evil, he feels goodness.
A person does not expect a lucky streak to follow a bad one, but knows that the “unlucky streak” he is experiencing is the revelation of evil within him, which he has to reveal and then correct. In this manner, he attains goodness within. It’s not that the suffering takes place in one place and the reward comes in another, or that he makes an effort here and receives a payment there. Rather, by carrying out the correction, he transforms the “evil inclination” into the “good inclination” – and that’s the reward.
That is why a person rejoices when the “wicked are revealed” – because this gives him something to work on and to correct. It is thanks to this work that he attains spirituality, the Creator, the property of bestowal. Yet, everything happens in the same place: the desire to enjoy.