Have you ever asked this question or been asked by someone?
It's a universal question with dark and difficult trails to explore. It can be answered from a purely theological point of view, but that is not what we crave in times of pain. We crave the full restoration of peace and the ability to simply breathe. The answers that pursue our mind are not always enough to settle our hearts.
It's like sitting in front of a 1000 piece puzzle where the pieces don't fit... we stare at the box cover for hours knowing the big picture exists but it's too overwhelming to see in the fragments.
A few years ago at a women's conference I addressed this question, and put it here for anyone that might need to explore it's depths.