A thought

It is only our mortal arrogance that makes us think we can or should understand G-d or the way He lets us makes our own choices. If we did, we'd be like HaShem himself, and that contradicts the whole religion thing. The whole struggle to accept that we will n ever understand whatever G-d allows to happen is a very important part of faith and it takes a very long time, even a whole lifetime and beyond to realise. But really, I have to say that most of the things that He allows to happen are the results of the same freedom given by Him that allows us to experience joy.