Question: Why are we given such a property like sorrow? Apparently, the Creator does not have it but people do. How can sorrow be used beneficially for spiritual development?
Answer: Sorrow in our world arises because of lack of consciousness and lack of understanding the wholeness of the picture of creation
I would not call the emotion that you are talking about sorrow. I would rather call it compassion. It is when a person regrets that there are people who do not understand the greatness of creation and what a bliss it is to attain this greatness.
From KabTV’s “Fundamentals of Kabbalah” 1/20/19