Question: What is reward and punishment from the point of view of the wisdom of Kabbalah?
Answer: From the point of view of the program of creation the yearning of a person to be similar to the Creator is a reward. And in the place where he is unable to mobilize himself for this, he should see punishment.
In other words, if a person is given the opportunity to become similar to the Creator, and he uses it, then the work itself becomes a reward for him. And vice versa.
From KabTV’s “Spiritual States” 5/31/22