If you knew the answer, then your compassion for those who are suffering would cease. When you understand why another suffers not only do you not to try to alleviate the suffering but you actually encourage it!
When you watch someone suffer through very painful physical therapy you understand the value of their pain and you encourage it. “Come on dad, one more step!” Because you understand why your child is getting a shot from the doctor you do not to try to prevent it.
So God was left with a choice… He could allow you to understand suffering or he could make it impossible for a moral human being to comprehend suffering in another human being which would thus galvanize each of us into an indefatigable pursuit of alleviating and ending suffering! He chose the latter…
Menachem Mendel Bluming