Not all suffering can be explained. There is pain, sometimes, that is not punishment and not repair.
True, we were given Torah, a G‑dly wisdom containing the secrets of all things. But concerning these things even Moses asked and was told to be quiet, to cease to ask. Because there are some things that even G‑dly wisdom does not explain. Because they cannot be explained.
We can only know that whatever happens is from G‑d, that G‑d is just, and that He does not desire suffering.
But until the end of days, we will have to suffer the 'why.'

To stop these obstacles G-d wisdom after Genesis corruption have told since the beginning ("By their fruits you will know them") So, In other words, It can be explained in reasons, to why there is (so much) secrets of his wisdom, In the last days of our planet (Earth) we must endure his ways of his commandments with his fruits of wisdom.